Home / 19,720,641.60-29,580,962.40-13,226,126.40

Finding the Fourth Proportional to 19,720,641.60, 29,580,962.40 and 13,226,126.40

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Solution

The fourth proportional to 19,720,641.60, 29,580,962.40 and 13,226,126.40 is: 19,839,189.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,720,641.60 : 29,580,962.40 = 13,226,126.40 : x
  2. Step 2: Convert to fraction form
    19,720,641.60/29,580,962.40 = 13,226,126.40/x
  3. Step 3: Cross multiply
    19,720,641.60x = 29,580,962.40 × 13,226,126.40
  4. Step 4: Simplify right side
    19,720,641.60x = 391,241,547,736,047.38
  5. Step 5: Solve for x
    x = 391,241,547,736,047.38/19,720,641.60
  6. Step 6: Final answer
    x = 19,839,189.60

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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.