Home / 1,251,399,758.20-1,728,364,937.10-824,146,978.12

Finding the Fourth Proportional to 1,251,399,758.20, 1,728,364,937.10 and 824,146,978.12

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Solution

The fourth proportional to 1,251,399,758.20, 1,728,364,937.10 and 824,146,978.12 is: 1,138,266,753.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,399,758.20 : 1,728,364,937.10 = 824,146,978.12 : x
  2. Step 2: Convert to fraction form
    1,251,399,758.20/1,728,364,937.10 = 824,146,978.12/x
  3. Step 3: Cross multiply
    1,251,399,758.20x = 1,728,364,937.10 × 824,146,978.12
  4. Step 4: Simplify right side
    1,251,399,758.20x = 1,424,426,739,999,528,704
  5. Step 5: Solve for x
    x = 1,424,426,739,999,528,704/1,251,399,758.20
  6. Step 6: Final answer
    x = 1,138,266,753.42

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1.5x scale

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.