Home / 338,360,965.61-507,442,985.97-131,053,138.92

Finding the Fourth Proportional to 338,360,965.61, 507,442,985.97 and 131,053,138.92

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Solution

The fourth proportional to 338,360,965.61, 507,442,985.97 and 131,053,138.92 is: 196,541,572.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,360,965.61 : 507,442,985.97 = 131,053,138.92 : x
  2. Step 2: Convert to fraction form
    338,360,965.61/507,442,985.97 = 131,053,138.92/x
  3. Step 3: Cross multiply
    338,360,965.61x = 507,442,985.97 × 131,053,138.92
  4. Step 4: Simplify right side
    338,360,965.61x = 66,501,996,134,306,024
  5. Step 5: Solve for x
    x = 66,501,996,134,306,024/338,360,965.61
  6. Step 6: Final answer
    x = 196,541,572.15

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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.