Home / 20,461,208.52-28,236,470.20-11,293,853.70

Finding the Fourth Proportional to 20,461,208.52, 28,236,470.20 and 11,293,853.70

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Solution

The fourth proportional to 20,461,208.52, 28,236,470.20 and 11,293,853.70 is: 15,585,519.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,461,208.52 : 28,236,470.20 = 11,293,853.70 : x
  2. Step 2: Convert to fraction form
    20,461,208.52/28,236,470.20 = 11,293,853.70/x
  3. Step 3: Cross multiply
    20,461,208.52x = 28,236,470.20 × 11,293,853.70
  4. Step 4: Simplify right side
    20,461,208.52x = 318,898,563,443,209.69
  5. Step 5: Solve for x
    x = 318,898,563,443,209.69/20,461,208.52
  6. Step 6: Final answer
    x = 15,585,519.45

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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.