Home / 26,385,339.20-39,578,008.80-20,405,998.40

Finding the Fourth Proportional to 26,385,339.20, 39,578,008.80 and 20,405,998.40

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Solution

The fourth proportional to 26,385,339.20, 39,578,008.80 and 20,405,998.40 is: 30,608,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,385,339.20 : 39,578,008.80 = 20,405,998.40 : x
  2. Step 2: Convert to fraction form
    26,385,339.20/39,578,008.80 = 20,405,998.40/x
  3. Step 3: Cross multiply
    26,385,339.20x = 39,578,008.80 × 20,405,998.40
  4. Step 4: Simplify right side
    26,385,339.20x = 807,628,784,247,985.75
  5. Step 5: Solve for x
    x = 807,628,784,247,985.75/26,385,339.20
  6. Step 6: Final answer
    x = 30,608,997.60

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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.