Home / 78,312,955.91-117,524,634.86-36,815,726.22

Finding the Fourth Proportional to 78,312,955.91, 117,524,634.86 and 36,815,726.22

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Solution

The fourth proportional to 78,312,955.91, 117,524,634.86 and 36,815,726.22 is: 55,249,539.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,312,955.91 : 117,524,634.86 = 36,815,726.22 : x
  2. Step 2: Convert to fraction form
    78,312,955.91/117,524,634.86 = 36,815,726.22/x
  3. Step 3: Cross multiply
    78,312,955.91x = 117,524,634.86 × 36,815,726.22
  4. Step 4: Simplify right side
    78,312,955.91x = 4,326,754,781,266,333
  5. Step 5: Solve for x
    x = 4,326,754,781,266,333/78,312,955.91
  6. Step 6: Final answer
    x = 55,249,539.89

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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.