Home / 90,753,225.40-136,129,838.10-30,161,078.20

Finding the Fourth Proportional to 90,753,225.40, 136,129,838.10 and 30,161,078.20

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Solution

The fourth proportional to 90,753,225.40, 136,129,838.10 and 30,161,078.20 is: 45,241,617.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,753,225.40 : 136,129,838.10 = 30,161,078.20 : x
  2. Step 2: Convert to fraction form
    90,753,225.40/136,129,838.10 = 30,161,078.20/x
  3. Step 3: Cross multiply
    90,753,225.40x = 136,129,838.10 × 30,161,078.20
  4. Step 4: Simplify right side
    90,753,225.40x = 4,105,822,692,287,439
  5. Step 5: Solve for x
    x = 4,105,822,692,287,439/90,753,225.40
  6. Step 6: Final answer
    x = 45,241,617.30

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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.