Home / 80,150,281.90-120,303,166.56-38,680,342.28

Finding the Fourth Proportional to 80,150,281.90, 120,303,166.56 and 38,680,342.28

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Solution

The fourth proportional to 80,150,281.90, 120,303,166.56 and 38,680,342.28 is: 58,058,032.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,150,281.90 : 120,303,166.56 = 38,680,342.28 : x
  2. Step 2: Convert to fraction form
    80,150,281.90/120,303,166.56 = 38,680,342.28/x
  3. Step 3: Cross multiply
    80,150,281.90x = 120,303,166.56 × 38,680,342.28
  4. Step 4: Simplify right side
    80,150,281.90x = 4,653,367,659,908,650
  5. Step 5: Solve for x
    x = 4,653,367,659,908,650/80,150,281.90
  6. Step 6: Final answer
    x = 58,058,032.36

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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.