Home / 639,143,999.40-958,715,999.10-614,061,733.80

Finding the Fourth Proportional to 639,143,999.40, 958,715,999.10 and 614,061,733.80

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Solution

The fourth proportional to 639,143,999.40, 958,715,999.10 and 614,061,733.80 is: 921,092,600.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,143,999.40 : 958,715,999.10 = 614,061,733.80 : x
  2. Step 2: Convert to fraction form
    639,143,999.40/958,715,999.10 = 614,061,733.80/x
  3. Step 3: Cross multiply
    639,143,999.40x = 958,715,999.10 × 614,061,733.80
  4. Step 4: Simplify right side
    639,143,999.40x = 588,710,808,629,145,216
  5. Step 5: Solve for x
    x = 588,710,808,629,145,216/639,143,999.40
  6. Step 6: Final answer
    x = 921,092,600.70

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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.