Home / 639,720,873.04-959,581,309.20-155,046,681.04

Finding the Fourth Proportional to 639,720,873.04, 959,581,309.20 and 155,046,681.04

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Solution

The fourth proportional to 639,720,873.04, 959,581,309.20 and 155,046,681.04 is: 232,570,021.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,720,873.04 : 959,581,309.20 = 155,046,681.04 : x
  2. Step 2: Convert to fraction form
    639,720,873.04/959,581,309.20 = 155,046,681.04/x
  3. Step 3: Cross multiply
    639,720,873.04x = 959,581,309.20 × 155,046,681.04
  4. Step 4: Simplify right side
    639,720,873.04x = 148,779,897,179,478,016
  5. Step 5: Solve for x
    x = 148,779,897,179,478,016/639,720,873.04
  6. Step 6: Final answer
    x = 232,570,021.47

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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.