Home / 31,791,389.57-47,678,472.07-8,756,845.82

Finding the Fourth Proportional to 31,791,389.57, 47,678,472.07 and 8,756,845.82

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Solution

The fourth proportional to 31,791,389.57, 47,678,472.07 and 8,756,845.82 is: 13,132,896.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,791,389.57 : 47,678,472.07 = 8,756,845.82 : x
  2. Step 2: Convert to fraction form
    31,791,389.57/47,678,472.07 = 8,756,845.82/x
  3. Step 3: Cross multiply
    31,791,389.57x = 47,678,472.07 × 8,756,845.82
  4. Step 4: Simplify right side
    31,791,389.57x = 417,513,028,850,166.25
  5. Step 5: Solve for x
    x = 417,513,028,850,166.25/31,791,389.57
  6. Step 6: Final answer
    x = 13,132,896.50

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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.