Home / 8,519,955,666.40-12,779,933,499.60-7,068,767,442.40

Finding the Fourth Proportional to 8,519,955,666.40, 12,779,933,499.60 and 7,068,767,442.40

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Solution

The fourth proportional to 8,519,955,666.40, 12,779,933,499.60 and 7,068,767,442.40 is: 10,603,151,163.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,519,955,666.40 : 12,779,933,499.60 = 7,068,767,442.40 : x
  2. Step 2: Convert to fraction form
    8,519,955,666.40/12,779,933,499.60 = 7,068,767,442.40/x
  3. Step 3: Cross multiply
    8,519,955,666.40x = 12,779,933,499.60 × 7,068,767,442.40
  4. Step 4: Simplify right side
    8,519,955,666.40x = 90,338,377,838,009,565,184
  5. Step 5: Solve for x
    x = 90,338,377,838,009,565,184/8,519,955,666.40
  6. Step 6: Final answer
    x = 10,603,151,163.60

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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.