Home / 81,650,646.90-122,396,254.20-73,041,302.70

Finding the Fourth Proportional to 81,650,646.90, 122,396,254.20 and 73,041,302.70

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Solution

The fourth proportional to 81,650,646.90, 122,396,254.20 and 73,041,302.70 is: 109,490,643.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,650,646.90 : 122,396,254.20 = 73,041,302.70 : x
  2. Step 2: Convert to fraction form
    81,650,646.90/122,396,254.20 = 73,041,302.70/x
  3. Step 3: Cross multiply
    81,650,646.90x = 122,396,254.20 × 73,041,302.70
  4. Step 4: Simplify right side
    81,650,646.90x = 8,939,981,852,368,347
  5. Step 5: Solve for x
    x = 8,939,981,852,368,347/81,650,646.90
  6. Step 6: Final answer
    x = 109,490,643.27

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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.