Home / 153,612,340.92-211,967,620.20-90,890,361.90

Finding the Fourth Proportional to 153,612,340.92, 211,967,620.20 and 90,890,361.90

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Solution

The fourth proportional to 153,612,340.92, 211,967,620.20 and 90,890,361.90 is: 125,418,398.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,612,340.92 : 211,967,620.20 = 90,890,361.90 : x
  2. Step 2: Convert to fraction form
    153,612,340.92/211,967,620.20 = 90,890,361.90/x
  3. Step 3: Cross multiply
    153,612,340.92x = 211,967,620.20 × 90,890,361.90
  4. Step 4: Simplify right side
    153,612,340.92x = 19,265,813,711,059,752
  5. Step 5: Solve for x
    x = 19,265,813,711,059,752/153,612,340.92
  6. Step 6: Final answer
    x = 125,418,398.00

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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.