Home / 19,132,383.85-28,692,689.32-5,481,872.74

Finding the Fourth Proportional to 19,132,383.85, 28,692,689.32 and 5,481,872.74

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Solution

The fourth proportional to 19,132,383.85, 28,692,689.32 and 5,481,872.74 is: 8,221,122.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,132,383.85 : 28,692,689.32 = 5,481,872.74 : x
  2. Step 2: Convert to fraction form
    19,132,383.85/28,692,689.32 = 5,481,872.74/x
  3. Step 3: Cross multiply
    19,132,383.85x = 28,692,689.32 × 5,481,872.74
  4. Step 4: Simplify right side
    19,132,383.85x = 157,289,671,559,434.03
  5. Step 5: Solve for x
    x = 157,289,671,559,434.03/19,132,383.85
  6. Step 6: Final answer
    x = 8,221,122.51

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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.