Home / 31,433,322.60-47,155,694.94-12,989,311.56

Finding the Fourth Proportional to 31,433,322.60, 47,155,694.94 and 12,989,311.56

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Solution

The fourth proportional to 31,433,322.60, 47,155,694.94 and 12,989,311.56 is: 19,486,327.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,433,322.60 : 47,155,694.94 = 12,989,311.56 : x
  2. Step 2: Convert to fraction form
    31,433,322.60/47,155,694.94 = 12,989,311.56/x
  3. Step 3: Cross multiply
    31,433,322.60x = 47,155,694.94 × 12,989,311.56
  4. Step 4: Simplify right side
    31,433,322.60x = 612,520,013,403,975.50
  5. Step 5: Solve for x
    x = 612,520,013,403,975.50/31,433,322.60
  6. Step 6: Final answer
    x = 19,486,327.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.