Home / 20,101,359.60-30,152,039.40-12,543,087.60

Finding the Fourth Proportional to 20,101,359.60, 30,152,039.40 and 12,543,087.60

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Solution

The fourth proportional to 20,101,359.60, 30,152,039.40 and 12,543,087.60 is: 18,814,631.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101,359.60 : 30,152,039.40 = 12,543,087.60 : x
  2. Step 2: Convert to fraction form
    20,101,359.60/30,152,039.40 = 12,543,087.60/x
  3. Step 3: Cross multiply
    20,101,359.60x = 30,152,039.40 × 12,543,087.60
  4. Step 4: Simplify right side
    20,101,359.60x = 378,199,671,512,851.44
  5. Step 5: Solve for x
    x = 378,199,671,512,851.44/20,101,359.60
  6. Step 6: Final answer
    x = 18,814,631.40

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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.