Home / 159,443,079.76-220,031,447.88-86,104,219.60

Finding the Fourth Proportional to 159,443,079.76, 220,031,447.88 and 86,104,219.60

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Solution

The fourth proportional to 159,443,079.76, 220,031,447.88 and 86,104,219.60 is: 118,823,821.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,443,079.76 : 220,031,447.88 = 86,104,219.60 : x
  2. Step 2: Convert to fraction form
    159,443,079.76/220,031,447.88 = 86,104,219.60/x
  3. Step 3: Cross multiply
    159,443,079.76x = 220,031,447.88 × 86,104,219.60
  4. Step 4: Simplify right side
    159,443,079.76x = 18,945,636,107,165,472
  5. Step 5: Solve for x
    x = 18,945,636,107,165,472/159,443,079.76
  6. Step 6: Final answer
    x = 118,823,821.87

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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.