Home / 338,033,687.40-507,428,444.70-261,695,140.20

Finding the Fourth Proportional to 338,033,687.40, 507,428,444.70 and 261,695,140.20

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Solution

The fourth proportional to 338,033,687.40, 507,428,444.70 and 261,695,140.20 is: 392,835,279.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,033,687.40 : 507,428,444.70 = 261,695,140.20 : x
  2. Step 2: Convert to fraction form
    338,033,687.40/507,428,444.70 = 261,695,140.20/x
  3. Step 3: Cross multiply
    338,033,687.40x = 507,428,444.70 × 261,695,140.20
  4. Step 4: Simplify right side
    338,033,687.40x = 132,791,557,977,234,432
  5. Step 5: Solve for x
    x = 132,791,557,977,234,432/338,033,687.40
  6. Step 6: Final answer
    x = 392,835,279.22

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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.