Home / 40,127,021.60-60,209,194.80-20,979,399.20

Finding the Fourth Proportional to 40,127,021.60, 60,209,194.80 and 20,979,399.20

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Solution

The fourth proportional to 40,127,021.60, 60,209,194.80 and 20,979,399.20 is: 31,478,855.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,127,021.60 : 60,209,194.80 = 20,979,399.20 : x
  2. Step 2: Convert to fraction form
    40,127,021.60/60,209,194.80 = 20,979,399.20/x
  3. Step 3: Cross multiply
    40,127,021.60x = 60,209,194.80 × 20,979,399.20
  4. Step 4: Simplify right side
    40,127,021.60x = 1,263,152,733,219,764
  5. Step 5: Solve for x
    x = 1,263,152,733,219,764/40,127,021.60
  6. Step 6: Final answer
    x = 31,478,855.96

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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.