Home / 908,335,653.28-1,253,503,705.28-490,647,940.80

Finding the Fourth Proportional to 908,335,653.28, 1,253,503,705.28 and 490,647,940.80

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Solution

The fourth proportional to 908,335,653.28, 1,253,503,705.28 and 490,647,940.80 is: 677,094,430.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,335,653.28 : 1,253,503,705.28 = 490,647,940.80 : x
  2. Step 2: Convert to fraction form
    908,335,653.28/1,253,503,705.28 = 490,647,940.80/x
  3. Step 3: Cross multiply
    908,335,653.28x = 1,253,503,705.28 × 490,647,940.80
  4. Step 4: Simplify right side
    908,335,653.28x = 615,029,011,780,802,048
  5. Step 5: Solve for x
    x = 615,029,011,780,802,048/908,335,653.28
  6. Step 6: Final answer
    x = 677,094,430.41

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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.