Home / 31,504,437.20-47,256,655.80-20,736,232.40

Finding the Fourth Proportional to 31,504,437.20, 47,256,655.80 and 20,736,232.40

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Solution

The fourth proportional to 31,504,437.20, 47,256,655.80 and 20,736,232.40 is: 31,104,348.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,504,437.20 : 47,256,655.80 = 20,736,232.40 : x
  2. Step 2: Convert to fraction form
    31,504,437.20/47,256,655.80 = 20,736,232.40/x
  3. Step 3: Cross multiply
    31,504,437.20x = 47,256,655.80 × 20,736,232.40
  4. Step 4: Simplify right side
    31,504,437.20x = 979,924,997,115,607.75
  5. Step 5: Solve for x
    x = 979,924,997,115,607.75/31,504,437.20
  6. Step 6: Final answer
    x = 31,104,348.60

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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.