Home / 639,144,038.40-958,716,057.60-614,061,772.80

Finding the Fourth Proportional to 639,144,038.40, 958,716,057.60 and 614,061,772.80

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Solution

The fourth proportional to 639,144,038.40, 958,716,057.60 and 614,061,772.80 is: 921,092,659.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,144,038.40 : 958,716,057.60 = 614,061,772.80 : x
  2. Step 2: Convert to fraction form
    639,144,038.40/958,716,057.60 = 614,061,772.80/x
  3. Step 3: Cross multiply
    639,144,038.40x = 958,716,057.60 × 614,061,772.80
  4. Step 4: Simplify right side
    639,144,038.40x = 588,710,881,941,682,944
  5. Step 5: Solve for x
    x = 588,710,881,941,682,944/639,144,038.40
  6. Step 6: Final answer
    x = 921,092,659.20

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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.