Home / 80,768,514.65-121,155,236.45-31,582,403.51

Finding the Fourth Proportional to 80,768,514.65, 121,155,236.45 and 31,582,403.51

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Solution

The fourth proportional to 80,768,514.65, 121,155,236.45 and 31,582,403.51 is: 47,374,568.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,768,514.65 : 121,155,236.45 = 31,582,403.51 : x
  2. Step 2: Convert to fraction form
    80,768,514.65/121,155,236.45 = 31,582,403.51/x
  3. Step 3: Cross multiply
    80,768,514.65x = 121,155,236.45 × 31,582,403.51
  4. Step 4: Simplify right side
    80,768,514.65x = 3,826,373,564,149,671.50
  5. Step 5: Solve for x
    x = 3,826,373,564,149,671.50/80,768,514.65
  6. Step 6: Final answer
    x = 47,374,568.93

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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.