Home / 908,630,396.42-1,253,909,949.46-490,942,681.70

Finding the Fourth Proportional to 908,630,396.42, 1,253,909,949.46 and 490,942,681.70

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Solution

The fourth proportional to 908,630,396.42, 1,253,909,949.46 and 490,942,681.70 is: 677,500,902.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,630,396.42 : 1,253,909,949.46 = 490,942,681.70 : x
  2. Step 2: Convert to fraction form
    908,630,396.42/1,253,909,949.46 = 490,942,681.70/x
  3. Step 3: Cross multiply
    908,630,396.42x = 1,253,909,949.46 × 490,942,681.70
  4. Step 4: Simplify right side
    908,630,396.42x = 615,597,913,190,706,944
  5. Step 5: Solve for x
    x = 615,597,913,190,706,944/908,630,396.42
  6. Step 6: Final answer
    x = 677,500,902.04

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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.