Home / 13,391,876.60-18,480,944.85-7,431,405.74

Finding the Fourth Proportional to 13,391,876.60, 18,480,944.85 and 7,431,405.74

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Solution

The fourth proportional to 13,391,876.60, 18,480,944.85 and 7,431,405.74 is: 10,255,426.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,391,876.60 : 18,480,944.85 = 7,431,405.74 : x
  2. Step 2: Convert to fraction form
    13,391,876.60/18,480,944.85 = 7,431,405.74/x
  3. Step 3: Cross multiply
    13,391,876.60x = 18,480,944.85 × 7,431,405.74
  4. Step 4: Simplify right side
    13,391,876.60x = 137,339,399,638,913.45
  5. Step 5: Solve for x
    x = 137,339,399,638,913.45/13,391,876.60
  6. Step 6: Final answer
    x = 10,255,426.01

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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.