Home / 117,561,875.71-162,215,778.30-65,343,811.66

Finding the Fourth Proportional to 117,561,875.71, 162,215,778.30 and 65,343,811.66

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Solution

The fourth proportional to 117,561,875.71, 162,215,778.30 and 65,343,811.66 is: 90,163,560.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,561,875.71 : 162,215,778.30 = 65,343,811.66 : x
  2. Step 2: Convert to fraction form
    117,561,875.71/162,215,778.30 = 65,343,811.66/x
  3. Step 3: Cross multiply
    117,561,875.71x = 162,215,778.30 × 65,343,811.66
  4. Step 4: Simplify right side
    117,561,875.71x = 10,599,797,265,515,516
  5. Step 5: Solve for x
    x = 10,599,797,265,515,516/117,561,875.71
  6. Step 6: Final answer
    x = 90,163,560.27

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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.