Home / 153,612,342.92-211,967,622.96-90,890,363.90

Finding the Fourth Proportional to 153,612,342.92, 211,967,622.96 and 90,890,363.90

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Solution

The fourth proportional to 153,612,342.92, 211,967,622.96 and 90,890,363.90 is: 125,418,400.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,612,342.92 : 211,967,622.96 = 90,890,363.90 : x
  2. Step 2: Convert to fraction form
    153,612,342.92/211,967,622.96 = 90,890,363.90/x
  3. Step 3: Cross multiply
    153,612,342.92x = 211,967,622.96 × 90,890,363.90
  4. Step 4: Simplify right side
    153,612,342.92x = 19,265,814,385,852,396
  5. Step 5: Solve for x
    x = 19,265,814,385,852,396/153,612,342.92
  6. Step 6: Final answer
    x = 125,418,400.76

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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.