Home / 131,479,818.54-181,500,263.19-78,575,189.82

Finding the Fourth Proportional to 131,479,818.54, 181,500,263.19 and 78,575,189.82

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Solution

The fourth proportional to 131,479,818.54, 181,500,263.19 and 78,575,189.82 is: 108,468,491.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,479,818.54 : 181,500,263.19 = 78,575,189.82 : x
  2. Step 2: Convert to fraction form
    131,479,818.54/181,500,263.19 = 78,575,189.82/x
  3. Step 3: Cross multiply
    131,479,818.54x = 181,500,263.19 × 78,575,189.82
  4. Step 4: Simplify right side
    131,479,818.54x = 14,261,417,632,534,208
  5. Step 5: Solve for x
    x = 14,261,417,632,534,208/131,479,818.54
  6. Step 6: Final answer
    x = 108,468,491.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.