Home / 12,635,397.18-17,436,851.51-7,129,938.83

Finding the Fourth Proportional to 12,635,397.18, 17,436,851.51 and 7,129,938.83

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Solution

The fourth proportional to 12,635,397.18, 17,436,851.51 and 7,129,938.83 is: 9,839,317.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,635,397.18 : 17,436,851.51 = 7,129,938.83 : x
  2. Step 2: Convert to fraction form
    12,635,397.18/17,436,851.51 = 7,129,938.83/x
  3. Step 3: Cross multiply
    12,635,397.18x = 17,436,851.51 × 7,129,938.83
  4. Step 4: Simplify right side
    12,635,397.18x = 124,323,684,531,259.17
  5. Step 5: Solve for x
    x = 124,323,684,531,259.17/12,635,397.18
  6. Step 6: Final answer
    x = 9,839,317.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.