Home / 803,900,691.30-1,205,851,036.95-395,754,003.30

Finding the Fourth Proportional to 803,900,691.30, 1,205,851,036.95 and 395,754,003.30

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Solution

The fourth proportional to 803,900,691.30, 1,205,851,036.95 and 395,754,003.30 is: 593,631,004.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,900,691.30 : 1,205,851,036.95 = 395,754,003.30 : x
  2. Step 2: Convert to fraction form
    803,900,691.30/1,205,851,036.95 = 395,754,003.30/x
  3. Step 3: Cross multiply
    803,900,691.30x = 1,205,851,036.95 × 395,754,003.30
  4. Step 4: Simplify right side
    803,900,691.30x = 477,220,375,256,418,752
  5. Step 5: Solve for x
    x = 477,220,375,256,418,752/803,900,691.30
  6. Step 6: Final answer
    x = 593,631,004.95

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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.