Home / 908,630,395.92-1,253,909,948.77-490,942,681.20

Finding the Fourth Proportional to 908,630,395.92, 1,253,909,948.77 and 490,942,681.20

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Solution

The fourth proportional to 908,630,395.92, 1,253,909,948.77 and 490,942,681.20 is: 677,500,901.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,630,395.92 : 1,253,909,948.77 = 490,942,681.20 : x
  2. Step 2: Convert to fraction form
    908,630,395.92/1,253,909,948.77 = 490,942,681.20/x
  3. Step 3: Cross multiply
    908,630,395.92x = 1,253,909,948.77 × 490,942,681.20
  4. Step 4: Simplify right side
    908,630,395.92x = 615,597,912,226,228,864
  5. Step 5: Solve for x
    x = 615,597,912,226,228,864/908,630,395.92
  6. Step 6: Final answer
    x = 677,500,901.35

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.