Home / 916,419,083.76-1,264,661,610.84-498,736,375.92

Finding the Fourth Proportional to 916,419,083.76, 1,264,661,610.84 and 498,736,375.92

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Solution

The fourth proportional to 916,419,083.76, 1,264,661,610.84 and 498,736,375.92 is: 688,257,981.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,419,083.76 : 1,264,661,610.84 = 498,736,375.92 : x
  2. Step 2: Convert to fraction form
    916,419,083.76/1,264,661,610.84 = 498,736,375.92/x
  3. Step 3: Cross multiply
    916,419,083.76x = 1,264,661,610.84 × 498,736,375.92
  4. Step 4: Simplify right side
    916,419,083.76x = 630,732,748,555,490,944
  5. Step 5: Solve for x
    x = 630,732,748,555,490,944/916,419,083.76
  6. Step 6: Final answer
    x = 688,257,981.24

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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.