Home / 148,580,473.20-205,041,052.32-83,390,377.20

Finding the Fourth Proportional to 148,580,473.20, 205,041,052.32 and 83,390,377.20

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Solution

The fourth proportional to 148,580,473.20, 205,041,052.32 and 83,390,377.20 is: 115,078,720.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,580,473.20 : 205,041,052.32 = 83,390,377.20 : x
  2. Step 2: Convert to fraction form
    148,580,473.20/205,041,052.32 = 83,390,377.20/x
  3. Step 3: Cross multiply
    148,580,473.20x = 205,041,052.32 × 83,390,377.20
  4. Step 4: Simplify right side
    148,580,473.20x = 17,098,450,694,449,736
  5. Step 5: Solve for x
    x = 17,098,450,694,449,736/148,580,473.20
  6. Step 6: Final answer
    x = 115,078,720.15

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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.