Home / 90,217,988.91-124,500,945.92-48,964,881.87

Finding the Fourth Proportional to 90,217,988.91, 124,500,945.92 and 48,964,881.87

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Solution

The fourth proportional to 90,217,988.91, 124,500,945.92 and 48,964,881.87 is: 67,571,602.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,217,988.91 : 124,500,945.92 = 48,964,881.87 : x
  2. Step 2: Convert to fraction form
    90,217,988.91/124,500,945.92 = 48,964,881.87/x
  3. Step 3: Cross multiply
    90,217,988.91x = 124,500,945.92 × 48,964,881.87
  4. Step 4: Simplify right side
    90,217,988.91x = 6,096,174,109,431,234
  5. Step 5: Solve for x
    x = 6,096,174,109,431,234/90,217,988.91
  6. Step 6: Final answer
    x = 67,571,602.77

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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.