Home / 8,138,775,779.70-12,208,163,669.55-8,069,901,026.10

Finding the Fourth Proportional to 8,138,775,779.70, 12,208,163,669.55 and 8,069,901,026.10

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Solution

The fourth proportional to 8,138,775,779.70, 12,208,163,669.55 and 8,069,901,026.10 is: 12,104,851,539.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,138,775,779.70 : 12,208,163,669.55 = 8,069,901,026.10 : x
  2. Step 2: Convert to fraction form
    8,138,775,779.70/12,208,163,669.55 = 8,069,901,026.10/x
  3. Step 3: Cross multiply
    8,138,775,779.70x = 12,208,163,669.55 × 8,069,901,026.10
  4. Step 4: Simplify right side
    8,138,775,779.70x = 98,518,672,523,698,290,688
  5. Step 5: Solve for x
    x = 98,518,672,523,698,290,688/8,138,775,779.70
  6. Step 6: Final answer
    x = 12,104,851,539.15

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.