Home / 19,720,644.60-29,580,966.90-13,226,129.40

Finding the Fourth Proportional to 19,720,644.60, 29,580,966.90 and 13,226,129.40

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Solution

The fourth proportional to 19,720,644.60, 29,580,966.90 and 13,226,129.40 is: 19,839,194.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,720,644.60 : 29,580,966.90 = 13,226,129.40 : x
  2. Step 2: Convert to fraction form
    19,720,644.60/29,580,966.90 = 13,226,129.40/x
  3. Step 3: Cross multiply
    19,720,644.60x = 29,580,966.90 × 13,226,129.40
  4. Step 4: Simplify right side
    19,720,644.60x = 391,241,695,996,516.88
  5. Step 5: Solve for x
    x = 391,241,695,996,516.88/19,720,644.60
  6. Step 6: Final answer
    x = 19,839,194.10

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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.