Home / 124,711,212.28-172,020,380.86-79,986,343.00

Finding the Fourth Proportional to 124,711,212.28, 172,020,380.86 and 79,986,343.00

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Solution

The fourth proportional to 124,711,212.28, 172,020,380.86 and 79,986,343.00 is: 110,329,143.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,711,212.28 : 172,020,380.86 = 79,986,343.00 : x
  2. Step 2: Convert to fraction form
    124,711,212.28/172,020,380.86 = 79,986,343.00/x
  3. Step 3: Cross multiply
    124,711,212.28x = 172,020,380.86 × 79,986,343.00
  4. Step 4: Simplify right side
    124,711,212.28x = 13,759,281,185,598,496
  5. Step 5: Solve for x
    x = 13,759,281,185,598,496/124,711,212.28
  6. Step 6: Final answer
    x = 110,329,143.10

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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.