Home / 478,797,586.38-660,740,370.76-258,781,012.38

Finding the Fourth Proportional to 478,797,586.38, 660,740,370.76 and 258,781,012.38

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Solution

The fourth proportional to 478,797,586.38, 660,740,370.76 and 258,781,012.38 is: 357,117,635.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,797,586.38 : 660,740,370.76 = 258,781,012.38 : x
  2. Step 2: Convert to fraction form
    478,797,586.38/660,740,370.76 = 258,781,012.38/x
  3. Step 3: Cross multiply
    478,797,586.38x = 660,740,370.76 × 258,781,012.38
  4. Step 4: Simplify right side
    478,797,586.38x = 170,987,062,065,932,832
  5. Step 5: Solve for x
    x = 170,987,062,065,932,832/478,797,586.38
  6. Step 6: Final answer
    x = 357,117,635.78

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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.