Home / 145,451,874.30-200,727,825.72-79,376,628.60

Finding the Fourth Proportional to 145,451,874.30, 200,727,825.72 and 79,376,628.60

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Solution

The fourth proportional to 145,451,874.30, 200,727,825.72 and 79,376,628.60 is: 109,542,060.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,451,874.30 : 200,727,825.72 = 79,376,628.60 : x
  2. Step 2: Convert to fraction form
    145,451,874.30/200,727,825.72 = 79,376,628.60/x
  3. Step 3: Cross multiply
    145,451,874.30x = 200,727,825.72 × 79,376,628.60
  4. Step 4: Simplify right side
    145,451,874.30x = 15,933,098,071,861,966
  5. Step 5: Solve for x
    x = 15,933,098,071,861,966/145,451,874.30
  6. Step 6: Final answer
    x = 109,542,060.89

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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.