Home / 145,394,693.16-200,645,331.30-79,314,983.88

Finding the Fourth Proportional to 145,394,693.16, 200,645,331.30 and 79,314,983.88

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Solution

The fourth proportional to 145,394,693.16, 200,645,331.30 and 79,314,983.88 is: 109,455,034.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,394,693.16 : 200,645,331.30 = 79,314,983.88 : x
  2. Step 2: Convert to fraction form
    145,394,693.16/200,645,331.30 = 79,314,983.88/x
  3. Step 3: Cross multiply
    145,394,693.16x = 200,645,331.30 × 79,314,983.88
  4. Step 4: Simplify right side
    145,394,693.16x = 15,914,181,217,656,760
  5. Step 5: Solve for x
    x = 15,914,181,217,656,760/145,394,693.16
  6. Step 6: Final answer
    x = 109,455,034.92

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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.