Home / 72,077,140.38-99,386,752.35-45,930,243.18

Finding the Fourth Proportional to 72,077,140.38, 99,386,752.35 and 45,930,243.18

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Solution

The fourth proportional to 72,077,140.38, 99,386,752.35 and 45,930,243.18 is: 63,332,946.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,077,140.38 : 99,386,752.35 = 45,930,243.18 : x
  2. Step 2: Convert to fraction form
    72,077,140.38/99,386,752.35 = 45,930,243.18/x
  3. Step 3: Cross multiply
    72,077,140.38x = 99,386,752.35 × 45,930,243.18
  4. Step 4: Simplify right side
    72,077,140.38x = 4,564,857,704,305,936
  5. Step 5: Solve for x
    x = 4,564,857,704,305,936/72,077,140.38
  6. Step 6: Final answer
    x = 63,332,946.90

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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.