Home / 90,785,644.40-136,178,466.60-83,770,623.20

Finding the Fourth Proportional to 90,785,644.40, 136,178,466.60 and 83,770,623.20

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Solution

The fourth proportional to 90,785,644.40, 136,178,466.60 and 83,770,623.20 is: 125,655,934.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,785,644.40 : 136,178,466.60 = 83,770,623.20 : x
  2. Step 2: Convert to fraction form
    90,785,644.40/136,178,466.60 = 83,770,623.20/x
  3. Step 3: Cross multiply
    90,785,644.40x = 136,178,466.60 × 83,770,623.20
  4. Step 4: Simplify right side
    90,785,644.40x = 11,407,755,013,502,386
  5. Step 5: Solve for x
    x = 11,407,755,013,502,386/90,785,644.40
  6. Step 6: Final answer
    x = 125,655,934.80

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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.