Home / 90,753,093.40-136,129,640.10-87,225,899.80

Finding the Fourth Proportional to 90,753,093.40, 136,129,640.10 and 87,225,899.80

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Solution

The fourth proportional to 90,753,093.40, 136,129,640.10 and 87,225,899.80 is: 130,838,849.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,753,093.40 : 136,129,640.10 = 87,225,899.80 : x
  2. Step 2: Convert to fraction form
    90,753,093.40/136,129,640.10 = 87,225,899.80/x
  3. Step 3: Cross multiply
    90,753,093.40x = 136,129,640.10 × 87,225,899.80
  4. Step 4: Simplify right side
    90,753,093.40x = 11,874,030,347,172,662
  5. Step 5: Solve for x
    x = 11,874,030,347,172,662/90,753,093.40
  6. Step 6: Final answer
    x = 130,838,849.70

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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.