Home / 209,079,861.93-288,566,324.10-121,022,411.91

Finding the Fourth Proportional to 209,079,861.93, 288,566,324.10 and 121,022,411.91

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Solution

The fourth proportional to 209,079,861.93, 288,566,324.10 and 121,022,411.91 is: 167,031,832.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,079,861.93 : 288,566,324.10 = 121,022,411.91 : x
  2. Step 2: Convert to fraction form
    209,079,861.93/288,566,324.10 = 121,022,411.91/x
  3. Step 3: Cross multiply
    209,079,861.93x = 288,566,324.10 × 121,022,411.91
  4. Step 4: Simplify right side
    209,079,861.93x = 34,922,992,538,584,760
  5. Step 5: Solve for x
    x = 34,922,992,538,584,760/209,079,861.93
  6. Step 6: Final answer
    x = 167,031,832.79

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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.