Home / 118,689,901.22-163,872,046.28-74,103,827.47

Finding the Fourth Proportional to 118,689,901.22, 163,872,046.28 and 74,103,827.47

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Solution

The fourth proportional to 118,689,901.22, 163,872,046.28 and 74,103,827.47 is: 102,313,218.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,689,901.22 : 163,872,046.28 = 74,103,827.47 : x
  2. Step 2: Convert to fraction form
    118,689,901.22/163,872,046.28 = 74,103,827.47/x
  3. Step 3: Cross multiply
    118,689,901.22x = 163,872,046.28 × 74,103,827.47
  4. Step 4: Simplify right side
    118,689,901.22x = 12,143,545,844,464,554
  5. Step 5: Solve for x
    x = 12,143,545,844,464,554/118,689,901.22
  6. Step 6: Final answer
    x = 102,313,218.90

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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.