Home / 74,887,617.20-112,331,425.80-66,384,561.20

Finding the Fourth Proportional to 74,887,617.20, 112,331,425.80 and 66,384,561.20

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Solution

The fourth proportional to 74,887,617.20, 112,331,425.80 and 66,384,561.20 is: 99,576,841.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,887,617.20 : 112,331,425.80 = 66,384,561.20 : x
  2. Step 2: Convert to fraction form
    74,887,617.20/112,331,425.80 = 66,384,561.20/x
  3. Step 3: Cross multiply
    74,887,617.20x = 112,331,425.80 × 66,384,561.20
  4. Step 4: Simplify right side
    74,887,617.20x = 7,457,072,410,703,359
  5. Step 5: Solve for x
    x = 7,457,072,410,703,359/74,887,617.20
  6. Step 6: Final answer
    x = 99,576,841.80

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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.