Home / 13,548,218.40-18,696,559.05-7,353,264.78

Finding the Fourth Proportional to 13,548,218.40, 18,696,559.05 and 7,353,264.78

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Solution

The fourth proportional to 13,548,218.40, 18,696,559.05 and 7,353,264.78 is: 10,147,514.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,548,218.40 : 18,696,559.05 = 7,353,264.78 : x
  2. Step 2: Convert to fraction form
    13,548,218.40/18,696,559.05 = 7,353,264.78/x
  3. Step 3: Cross multiply
    13,548,218.40x = 18,696,559.05 × 7,353,264.78
  4. Step 4: Simplify right side
    13,548,218.40x = 137,480,749,169,555.27
  5. Step 5: Solve for x
    x = 137,480,749,169,555.27/13,548,218.40
  6. Step 6: Final answer
    x = 10,147,514.98

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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.