Home / 916,645,199.31-1,375,066,195.37-392,068,781.91

Finding the Fourth Proportional to 916,645,199.31, 1,375,066,195.37 and 392,068,781.91

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Solution

The fourth proportional to 916,645,199.31, 1,375,066,195.37 and 392,068,781.91 is: 588,145,259.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,645,199.31 : 1,375,066,195.37 = 392,068,781.91 : x
  2. Step 2: Convert to fraction form
    916,645,199.31/1,375,066,195.37 = 392,068,781.91/x
  3. Step 3: Cross multiply
    916,645,199.31x = 1,375,066,195.37 × 392,068,781.91
  4. Step 4: Simplify right side
    916,645,199.31x = 539,120,528,264,333,952
  5. Step 5: Solve for x
    x = 539,120,528,264,333,952/916,645,199.31
  6. Step 6: Final answer
    x = 588,145,259.11

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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.