Home / 21,456,127.80-32,184,191.70-13,378,224.60

Finding the Fourth Proportional to 21,456,127.80, 32,184,191.70 and 13,378,224.60

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Solution

The fourth proportional to 21,456,127.80, 32,184,191.70 and 13,378,224.60 is: 20,067,336.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,456,127.80 : 32,184,191.70 = 13,378,224.60 : x
  2. Step 2: Convert to fraction form
    21,456,127.80/32,184,191.70 = 13,378,224.60/x
  3. Step 3: Cross multiply
    21,456,127.80x = 32,184,191.70 × 13,378,224.60
  4. Step 4: Simplify right side
    21,456,127.80x = 430,567,345,132,055.81
  5. Step 5: Solve for x
    x = 430,567,345,132,055.81/21,456,127.80
  6. Step 6: Final answer
    x = 20,067,336.90

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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.