Home / 399,092,836.20-598,639,254.30-262,931,965.80

Finding the Fourth Proportional to 399,092,836.20, 598,639,254.30 and 262,931,965.80

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Solution

The fourth proportional to 399,092,836.20, 598,639,254.30 and 262,931,965.80 is: 394,397,948.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,092,836.20 : 598,639,254.30 = 262,931,965.80 : x
  2. Step 2: Convert to fraction form
    399,092,836.20/598,639,254.30 = 262,931,965.80/x
  3. Step 3: Cross multiply
    399,092,836.20x = 598,639,254.30 × 262,931,965.80
  4. Step 4: Simplify right side
    399,092,836.20x = 157,401,395,938,145,088
  5. Step 5: Solve for x
    x = 157,401,395,938,145,088/399,092,836.20
  6. Step 6: Final answer
    x = 394,397,948.70

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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.