Home / 908,335,668.96-1,253,503,726.92-490,647,956.40

Finding the Fourth Proportional to 908,335,668.96, 1,253,503,726.92 and 490,647,956.40

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Solution

The fourth proportional to 908,335,668.96, 1,253,503,726.92 and 490,647,956.40 is: 677,094,451.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,335,668.96 : 1,253,503,726.92 = 490,647,956.40 : x
  2. Step 2: Convert to fraction form
    908,335,668.96/1,253,503,726.92 = 490,647,956.40/x
  3. Step 3: Cross multiply
    908,335,668.96x = 1,253,503,726.92 × 490,647,956.40
  4. Step 4: Simplify right side
    908,335,668.96x = 615,029,041,953,081,728
  5. Step 5: Solve for x
    x = 615,029,041,953,081,728/908,335,668.96
  6. Step 6: Final answer
    x = 677,094,451.94

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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.