Home / 159,488,377-220,094,048.82-86,149,519.72

Finding the Fourth Proportional to 159,488,377, 220,094,048.82 and 86,149,519.72

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Solution

The fourth proportional to 159,488,377, 220,094,048.82 and 86,149,519.72 is: 118,886,385.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,488,377 : 220,094,048.82 = 86,149,519.72 : x
  2. Step 2: Convert to fraction form
    159,488,377/220,094,048.82 = 86,149,519.72/x
  3. Step 3: Cross multiply
    159,488,377x = 220,094,048.82 × 86,149,519.72
  4. Step 4: Simplify right side
    159,488,377x = 18,960,996,599,073,232
  5. Step 5: Solve for x
    x = 18,960,996,599,073,232/159,488,377
  6. Step 6: Final answer
    x = 118,886,385.05

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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.