Home / 15,384,031.47-21,209,187.58-9,867,829.73

Finding the Fourth Proportional to 15,384,031.47, 21,209,187.58 and 9,867,829.73

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Solution

The fourth proportional to 15,384,031.47, 21,209,187.58 and 9,867,829.73 is: 13,604,278.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,384,031.47 : 21,209,187.58 = 9,867,829.73 : x
  2. Step 2: Convert to fraction form
    15,384,031.47/21,209,187.58 = 9,867,829.73/x
  3. Step 3: Cross multiply
    15,384,031.47x = 21,209,187.58 × 9,867,829.73
  4. Step 4: Simplify right side
    15,384,031.47x = 209,288,651,620,355.25
  5. Step 5: Solve for x
    x = 209,288,651,620,355.25/15,384,031.47
  6. Step 6: Final answer
    x = 13,604,278.70

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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.