Home / 80,695,542-111,282,165.72-54,293,378.16

Finding the Fourth Proportional to 80,695,542, 111,282,165.72 and 54,293,378.16

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Solution

The fourth proportional to 80,695,542, 111,282,165.72 and 54,293,378.16 is: 74,872,595.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,695,542 : 111,282,165.72 = 54,293,378.16 : x
  2. Step 2: Convert to fraction form
    80,695,542/111,282,165.72 = 54,293,378.16/x
  3. Step 3: Cross multiply
    80,695,542x = 111,282,165.72 × 54,293,378.16
  4. Step 4: Simplify right side
    80,695,542x = 6,041,884,705,899,748
  5. Step 5: Solve for x
    x = 6,041,884,705,899,748/80,695,542
  6. Step 6: Final answer
    x = 74,872,595.89

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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.