Home / 83,173,999.90-124,521,851.40-80,782,515.40

Finding the Fourth Proportional to 83,173,999.90, 124,521,851.40 and 80,782,515.40

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Solution

The fourth proportional to 83,173,999.90, 124,521,851.40 and 80,782,515.40 is: 120,941,500.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,173,999.90 : 124,521,851.40 = 80,782,515.40 : x
  2. Step 2: Convert to fraction form
    83,173,999.90/124,521,851.40 = 80,782,515.40/x
  3. Step 3: Cross multiply
    83,173,999.90x = 124,521,851.40 × 80,782,515.40
  4. Step 4: Simplify right side
    83,173,999.90x = 10,059,188,378,357,012
  5. Step 5: Solve for x
    x = 10,059,188,378,357,012/83,173,999.90
  6. Step 6: Final answer
    x = 120,941,500.84

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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.