Home / 120,035,576.61-165,649,890.92-65,031,433.11

Finding the Fourth Proportional to 120,035,576.61, 165,649,890.92 and 65,031,433.11

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Solution

The fourth proportional to 120,035,576.61, 165,649,890.92 and 65,031,433.11 is: 89,743,808.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,035,576.61 : 165,649,890.92 = 65,031,433.11 : x
  2. Step 2: Convert to fraction form
    120,035,576.61/165,649,890.92 = 65,031,433.11/x
  3. Step 3: Cross multiply
    120,035,576.61x = 165,649,890.92 × 65,031,433.11
  4. Step 4: Simplify right side
    120,035,576.61x = 10,772,449,800,717,618
  5. Step 5: Solve for x
    x = 10,772,449,800,717,618/120,035,576.61
  6. Step 6: Final answer
    x = 89,743,808.50

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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.