Home / 156,758,668.76-216,007,932.66-121,260,818.90

Finding the Fourth Proportional to 156,758,668.76, 216,007,932.66 and 121,260,818.90

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Solution

The fourth proportional to 156,758,668.76, 216,007,932.66 and 121,260,818.90 is: 167,093,143.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,758,668.76 : 216,007,932.66 = 121,260,818.90 : x
  2. Step 2: Convert to fraction form
    156,758,668.76/216,007,932.66 = 121,260,818.90/x
  3. Step 3: Cross multiply
    156,758,668.76x = 216,007,932.66 × 121,260,818.90
  4. Step 4: Simplify right side
    156,758,668.76x = 26,193,298,803,247,656
  5. Step 5: Solve for x
    x = 26,193,298,803,247,656/156,758,668.76
  6. Step 6: Final answer
    x = 167,093,143.94

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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.