Home / 80,921,822.40-121,382,733.60-53,712,043.20

Finding the Fourth Proportional to 80,921,822.40, 121,382,733.60 and 53,712,043.20

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Solution

The fourth proportional to 80,921,822.40, 121,382,733.60 and 53,712,043.20 is: 80,568,064.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,921,822.40 : 121,382,733.60 = 53,712,043.20 : x
  2. Step 2: Convert to fraction form
    80,921,822.40/121,382,733.60 = 53,712,043.20/x
  3. Step 3: Cross multiply
    80,921,822.40x = 121,382,733.60 × 53,712,043.20
  4. Step 4: Simplify right side
    80,921,822.40x = 6,519,714,630,857,292
  5. Step 5: Solve for x
    x = 6,519,714,630,857,292/80,921,822.40
  6. Step 6: Final answer
    x = 80,568,064.80

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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.