Home / 80,618,841.96-111,218,885.10-51,234,426.60

Finding the Fourth Proportional to 80,618,841.96, 111,218,885.10 and 51,234,426.60

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Solution

The fourth proportional to 80,618,841.96, 111,218,885.10 and 51,234,426.60 is: 70,681,191.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,618,841.96 : 111,218,885.10 = 51,234,426.60 : x
  2. Step 2: Convert to fraction form
    80,618,841.96/111,218,885.10 = 51,234,426.60/x
  3. Step 3: Cross multiply
    80,618,841.96x = 111,218,885.10 × 51,234,426.60
  4. Step 4: Simplify right side
    80,618,841.96x = 5,698,235,805,189,784
  5. Step 5: Solve for x
    x = 5,698,235,805,189,784/80,618,841.96
  6. Step 6: Final answer
    x = 70,681,191.48

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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.