Home / 12,712,999.60-19,069,499.40-9,111,156.40

Finding the Fourth Proportional to 12,712,999.60, 19,069,499.40 and 9,111,156.40

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Solution

The fourth proportional to 12,712,999.60, 19,069,499.40 and 9,111,156.40 is: 13,666,734.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,712,999.60 : 19,069,499.40 = 9,111,156.40 : x
  2. Step 2: Convert to fraction form
    12,712,999.60/19,069,499.40 = 9,111,156.40/x
  3. Step 3: Cross multiply
    12,712,999.60x = 19,069,499.40 × 9,111,156.40
  4. Step 4: Simplify right side
    12,712,999.60x = 173,745,191,503,106.16
  5. Step 5: Solve for x
    x = 173,745,191,503,106.16/12,712,999.60
  6. Step 6: Final answer
    x = 13,666,734.60

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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.