Home / 257,803,401.90-386,138,232.45-136,493,136.30

Finding the Fourth Proportional to 257,803,401.90, 386,138,232.45 and 136,493,136.30

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Solution

The fourth proportional to 257,803,401.90, 386,138,232.45 and 136,493,136.30 is: 204,439,576.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,803,401.90 : 386,138,232.45 = 136,493,136.30 : x
  2. Step 2: Convert to fraction form
    257,803,401.90/386,138,232.45 = 136,493,136.30/x
  3. Step 3: Cross multiply
    257,803,401.90x = 386,138,232.45 × 136,493,136.30
  4. Step 4: Simplify right side
    257,803,401.90x = 52,705,218,392,438,936
  5. Step 5: Solve for x
    x = 52,705,218,392,438,936/257,803,401.90
  6. Step 6: Final answer
    x = 204,439,576.84

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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.