Home / 120,727,998.40-181,115,617.20-51,640,668.40

Finding the Fourth Proportional to 120,727,998.40, 181,115,617.20 and 51,640,668.40

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Solution

The fourth proportional to 120,727,998.40, 181,115,617.20 and 51,640,668.40 is: 77,471,105.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,727,998.40 : 181,115,617.20 = 51,640,668.40 : x
  2. Step 2: Convert to fraction form
    120,727,998.40/181,115,617.20 = 51,640,668.40/x
  3. Step 3: Cross multiply
    120,727,998.40x = 181,115,617.20 × 51,640,668.40
  4. Step 4: Simplify right side
    120,727,998.40x = 9,352,931,529,886,536
  5. Step 5: Solve for x
    x = 9,352,931,529,886,536/120,727,998.40
  6. Step 6: Final answer
    x = 77,471,105.74

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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.