Home / 12,591,712.60-18,887,568.90-10,072,288.60

Finding the Fourth Proportional to 12,591,712.60, 18,887,568.90 and 10,072,288.60

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Solution

The fourth proportional to 12,591,712.60, 18,887,568.90 and 10,072,288.60 is: 15,108,432.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,591,712.60 : 18,887,568.90 = 10,072,288.60 : x
  2. Step 2: Convert to fraction form
    12,591,712.60/18,887,568.90 = 10,072,288.60/x
  3. Step 3: Cross multiply
    12,591,712.60x = 18,887,568.90 × 10,072,288.60
  4. Step 4: Simplify right side
    12,591,712.60x = 190,241,044,913,184.53
  5. Step 5: Solve for x
    x = 190,241,044,913,184.53/12,591,712.60
  6. Step 6: Final answer
    x = 15,108,432.90

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1.5x scale

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.