Home / 120,965,657.30-181,332,364.35-40,145,023.70

Finding the Fourth Proportional to 120,965,657.30, 181,332,364.35 and 40,145,023.70

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Solution

The fourth proportional to 120,965,657.30, 181,332,364.35 and 40,145,023.70 is: 60,178,998.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,965,657.30 : 181,332,364.35 = 40,145,023.70 : x
  2. Step 2: Convert to fraction form
    120,965,657.30/181,332,364.35 = 40,145,023.70/x
  3. Step 3: Cross multiply
    120,965,657.30x = 181,332,364.35 × 40,145,023.70
  4. Step 4: Simplify right side
    120,965,657.30x = 7,279,592,064,407,785
  5. Step 5: Solve for x
    x = 7,279,592,064,407,785/120,965,657.30
  6. Step 6: Final answer
    x = 60,178,998.13

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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.