Home / 20,228,538.60-30,342,807.90-13,426,093.80

Finding the Fourth Proportional to 20,228,538.60, 30,342,807.90 and 13,426,093.80

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Solution

The fourth proportional to 20,228,538.60, 30,342,807.90 and 13,426,093.80 is: 20,139,140.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,228,538.60 : 30,342,807.90 = 13,426,093.80 : x
  2. Step 2: Convert to fraction form
    20,228,538.60/30,342,807.90 = 13,426,093.80/x
  3. Step 3: Cross multiply
    20,228,538.60x = 30,342,807.90 × 13,426,093.80
  4. Step 4: Simplify right side
    20,228,538.60x = 407,385,385,020,781
  5. Step 5: Solve for x
    x = 407,385,385,020,781/20,228,538.60
  6. Step 6: Final answer
    x = 20,139,140.70

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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.