Home / 91,031,153.40-136,546,730.10-52,129,672.20

Finding the Fourth Proportional to 91,031,153.40, 136,546,730.10 and 52,129,672.20

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Solution

The fourth proportional to 91,031,153.40, 136,546,730.10 and 52,129,672.20 is: 78,194,508.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,031,153.40 : 136,546,730.10 = 52,129,672.20 : x
  2. Step 2: Convert to fraction form
    91,031,153.40/136,546,730.10 = 52,129,672.20/x
  3. Step 3: Cross multiply
    91,031,153.40x = 136,546,730.10 × 52,129,672.20
  4. Step 4: Simplify right side
    91,031,153.40x = 7,118,136,280,094,873
  5. Step 5: Solve for x
    x = 7,118,136,280,094,873/91,031,153.40
  6. Step 6: Final answer
    x = 78,194,508.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.