Home / 927,642,240.64-1,391,844,780.48-409,799,378.56

Finding the Fourth Proportional to 927,642,240.64, 1,391,844,780.48 and 409,799,378.56

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Solution

The fourth proportional to 927,642,240.64, 1,391,844,780.48 and 409,799,378.56 is: 614,867,565.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,642,240.64 : 1,391,844,780.48 = 409,799,378.56 : x
  2. Step 2: Convert to fraction form
    927,642,240.64/1,391,844,780.48 = 409,799,378.56/x
  3. Step 3: Cross multiply
    927,642,240.64x = 1,391,844,780.48 × 409,799,378.56
  4. Step 4: Simplify right side
    927,642,240.64x = 570,377,126,092,683,648
  5. Step 5: Solve for x
    x = 570,377,126,092,683,648/927,642,240.64
  6. Step 6: Final answer
    x = 614,867,565.43

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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.