Home / 121,209,081.28-181,814,301.60-40,429,827.52

Finding the Fourth Proportional to 121,209,081.28, 181,814,301.60 and 40,429,827.52

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Solution

The fourth proportional to 121,209,081.28, 181,814,301.60 and 40,429,827.52 is: 60,644,967.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,209,081.28 : 181,814,301.60 = 40,429,827.52 : x
  2. Step 2: Convert to fraction form
    121,209,081.28/181,814,301.60 = 40,429,827.52/x
  3. Step 3: Cross multiply
    121,209,081.28x = 181,814,301.60 × 40,429,827.52
  4. Step 4: Simplify right side
    121,209,081.28x = 7,350,720,854,357,260
  5. Step 5: Solve for x
    x = 7,350,720,854,357,260/121,209,081.28
  6. Step 6: Final answer
    x = 60,644,967.99

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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.