Home / 515,578,822.40-773,368,233.60-286,255,251.20

Finding the Fourth Proportional to 515,578,822.40, 773,368,233.60 and 286,255,251.20

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Solution

The fourth proportional to 515,578,822.40, 773,368,233.60 and 286,255,251.20 is: 429,382,876.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,578,822.40 : 773,368,233.60 = 286,255,251.20 : x
  2. Step 2: Convert to fraction form
    515,578,822.40/773,368,233.60 = 286,255,251.20/x
  3. Step 3: Cross multiply
    515,578,822.40x = 773,368,233.60 × 286,255,251.20
  4. Step 4: Simplify right side
    515,578,822.40x = 221,380,717,979,268,288
  5. Step 5: Solve for x
    x = 221,380,717,979,268,288/515,578,822.40
  6. Step 6: Final answer
    x = 429,382,876.80

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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.