Home / 78,415,265.10-117,622,897.65-49,788,309.90

Finding the Fourth Proportional to 78,415,265.10, 117,622,897.65 and 49,788,309.90

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Solution

The fourth proportional to 78,415,265.10, 117,622,897.65 and 49,788,309.90 is: 74,682,464.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,415,265.10 : 117,622,897.65 = 49,788,309.90 : x
  2. Step 2: Convert to fraction form
    78,415,265.10/117,622,897.65 = 49,788,309.90/x
  3. Step 3: Cross multiply
    78,415,265.10x = 117,622,897.65 × 49,788,309.90
  4. Step 4: Simplify right side
    78,415,265.10x = 5,856,245,279,534,182
  5. Step 5: Solve for x
    x = 5,856,245,279,534,182/78,415,265.10
  6. Step 6: Final answer
    x = 74,682,464.85

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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.