Home / 255,761,513.88-383,639,713.25-80,884,577.72

Finding the Fourth Proportional to 255,761,513.88, 383,639,713.25 and 80,884,577.72

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Solution

The fourth proportional to 255,761,513.88, 383,639,713.25 and 80,884,577.72 is: 121,326,057.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,761,513.88 : 383,639,713.25 = 80,884,577.72 : x
  2. Step 2: Convert to fraction form
    255,761,513.88/383,639,713.25 = 80,884,577.72/x
  3. Step 3: Cross multiply
    255,761,513.88x = 383,639,713.25 × 80,884,577.72
  4. Step 4: Simplify right side
    255,761,513.88x = 31,030,536,202,287,020
  5. Step 5: Solve for x
    x = 31,030,536,202,287,020/255,761,513.88
  6. Step 6: Final answer
    x = 121,326,057.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.