Home / 739,791,931.17-1,020,914,070.62-405,257,110.47

Finding the Fourth Proportional to 739,791,931.17, 1,020,914,070.62 and 405,257,110.47

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Solution

The fourth proportional to 739,791,931.17, 1,020,914,070.62 and 405,257,110.47 is: 559,255,472.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,791,931.17 : 1,020,914,070.62 = 405,257,110.47 : x
  2. Step 2: Convert to fraction form
    739,791,931.17/1,020,914,070.62 = 405,257,110.47/x
  3. Step 3: Cross multiply
    739,791,931.17x = 1,020,914,070.62 × 405,257,110.47
  4. Step 4: Simplify right side
    739,791,931.17x = 413,732,686,295,600,448
  5. Step 5: Solve for x
    x = 413,732,686,295,600,448/739,791,931.17
  6. Step 6: Final answer
    x = 559,255,472.88

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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.