Home / 13,389,084.21-18,475,645.13-7,508,957.11

Finding the Fourth Proportional to 13,389,084.21, 18,475,645.13 and 7,508,957.11

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Solution

The fourth proportional to 13,389,084.21, 18,475,645.13 and 7,508,957.11 is: 10,361,636.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,389,084.21 : 18,475,645.13 = 7,508,957.11 : x
  2. Step 2: Convert to fraction form
    13,389,084.21/18,475,645.13 = 7,508,957.11/x
  3. Step 3: Cross multiply
    13,389,084.21x = 18,475,645.13 × 7,508,957.11
  4. Step 4: Simplify right side
    13,389,084.21x = 138,732,826,777,016.47
  5. Step 5: Solve for x
    x = 138,732,826,777,016.47/13,389,084.21
  6. Step 6: Final answer
    x = 10,361,636.74

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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.