Home / 13,140,805.42-18,134,677.13-7,260,818.49

Finding the Fourth Proportional to 13,140,805.42, 18,134,677.13 and 7,260,818.49

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Solution

The fourth proportional to 13,140,805.42, 18,134,677.13 and 7,260,818.49 is: 10,020,131.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,140,805.42 : 18,134,677.13 = 7,260,818.49 : x
  2. Step 2: Convert to fraction form
    13,140,805.42/18,134,677.13 = 7,260,818.49/x
  3. Step 3: Cross multiply
    13,140,805.42x = 18,134,677.13 × 7,260,818.49
  4. Step 4: Simplify right side
    13,140,805.42x = 131,672,599,015,684.12
  5. Step 5: Solve for x
    x = 131,672,599,015,684.12/13,140,805.42
  6. Step 6: Final answer
    x = 10,020,131.55

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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.