Home / 209,045,771.88-288,499,324.50-125,417,049.72

Finding the Fourth Proportional to 209,045,771.88, 288,499,324.50 and 125,417,049.72

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Solution

The fourth proportional to 209,045,771.88, 288,499,324.50 and 125,417,049.72 is: 173,085,223.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,045,771.88 : 288,499,324.50 = 125,417,049.72 : x
  2. Step 2: Convert to fraction form
    209,045,771.88/288,499,324.50 = 125,417,049.72/x
  3. Step 3: Cross multiply
    209,045,771.88x = 288,499,324.50 × 125,417,049.72
  4. Step 4: Simplify right side
    209,045,771.88x = 36,182,734,125,002,912
  5. Step 5: Solve for x
    x = 36,182,734,125,002,912/209,045,771.88
  6. Step 6: Final answer
    x = 173,085,223.39

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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.