Home / 74,887,634.20-112,331,451.30-66,384,578.20

Finding the Fourth Proportional to 74,887,634.20, 112,331,451.30 and 66,384,578.20

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Solution

The fourth proportional to 74,887,634.20, 112,331,451.30 and 66,384,578.20 is: 99,576,867.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,887,634.20 : 112,331,451.30 = 66,384,578.20 : x
  2. Step 2: Convert to fraction form
    74,887,634.20/112,331,451.30 = 66,384,578.20/x
  3. Step 3: Cross multiply
    74,887,634.20x = 112,331,451.30 × 66,384,578.20
  4. Step 4: Simplify right side
    74,887,634.20x = 7,457,076,013,144,342
  5. Step 5: Solve for x
    x = 7,457,076,013,144,342/74,887,634.20
  6. Step 6: Final answer
    x = 99,576,867.30

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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.