Home / 78,171,382.38-117,180,822.43-37,219,818.31

Finding the Fourth Proportional to 78,171,382.38, 117,180,822.43 and 37,219,818.31

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Solution

The fourth proportional to 78,171,382.38, 117,180,822.43 and 37,219,818.31 is: 55,793,421.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,171,382.38 : 117,180,822.43 = 37,219,818.31 : x
  2. Step 2: Convert to fraction form
    78,171,382.38/117,180,822.43 = 37,219,818.31/x
  3. Step 3: Cross multiply
    78,171,382.38x = 117,180,822.43 × 37,219,818.31
  4. Step 4: Simplify right side
    78,171,382.38x = 4,361,448,920,260,973
  5. Step 5: Solve for x
    x = 4,361,448,920,260,973/78,171,382.38
  6. Step 6: Final answer
    x = 55,793,421.93

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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.