Home / 129,331,577.89-178,450,934.44-74,316,805.57

Finding the Fourth Proportional to 129,331,577.89, 178,450,934.44 and 74,316,805.57

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Solution

The fourth proportional to 129,331,577.89, 178,450,934.44 and 74,316,805.57 is: 102,541,882.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,331,577.89 : 178,450,934.44 = 74,316,805.57 : x
  2. Step 2: Convert to fraction form
    129,331,577.89/178,450,934.44 = 74,316,805.57/x
  3. Step 3: Cross multiply
    129,331,577.89x = 178,450,934.44 × 74,316,805.57
  4. Step 4: Simplify right side
    129,331,577.89x = 13,261,903,398,562,296
  5. Step 5: Solve for x
    x = 13,261,903,398,562,296/129,331,577.89
  6. Step 6: Final answer
    x = 102,541,882.00

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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.