Home / 1,272,109,129,446.20-1,908,022,264,531.40-455,248,910,897.84

Finding the Fourth Proportional to 1,272,109,129,446.20, 1,908,022,264,531.40 and 455,248,910,897.84

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Solution

The fourth proportional to 1,272,109,129,446.20, 1,908,022,264,531.40 and 455,248,910,897.84 is: 682,822,753,009.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,109,129,446.20 : 1,908,022,264,531.40 = 455,248,910,897.84 : x
  2. Step 2: Convert to fraction form
    1,272,109,129,446.20/1,908,022,264,531.40 = 455,248,910,897.84/x
  3. Step 3: Cross multiply
    1,272,109,129,446.20x = 1,908,022,264,531.40 × 455,248,910,897.84
  4. Step 4: Simplify right side
    1,272,109,129,446.20x = 868,625,057,896,750,217,428,992
  5. Step 5: Solve for x
    x = 868,625,057,896,750,217,428,992/1,272,109,129,446.20
  6. Step 6: Final answer
    x = 682,822,753,009.33

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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.