Home / 79,238,077.20-118,857,115.80-54,579,214.80

Finding the Fourth Proportional to 79,238,077.20, 118,857,115.80 and 54,579,214.80

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Solution

The fourth proportional to 79,238,077.20, 118,857,115.80 and 54,579,214.80 is: 81,868,822.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,238,077.20 : 118,857,115.80 = 54,579,214.80 : x
  2. Step 2: Convert to fraction form
    79,238,077.20/118,857,115.80 = 54,579,214.80/x
  3. Step 3: Cross multiply
    79,238,077.20x = 118,857,115.80 × 54,579,214.80
  4. Step 4: Simplify right side
    79,238,077.20x = 6,487,128,053,756,673
  5. Step 5: Solve for x
    x = 6,487,128,053,756,673/79,238,077.20
  6. Step 6: Final answer
    x = 81,868,822.20

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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.