Home / 20,793,621.60-31,169,437.20-9,442,216.80

Finding the Fourth Proportional to 20,793,621.60, 31,169,437.20 and 9,442,216.80

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Solution

The fourth proportional to 20,793,621.60, 31,169,437.20 and 9,442,216.80 is: 14,153,791.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,793,621.60 : 31,169,437.20 = 9,442,216.80 : x
  2. Step 2: Convert to fraction form
    20,793,621.60/31,169,437.20 = 9,442,216.80/x
  3. Step 3: Cross multiply
    20,793,621.60x = 31,169,437.20 × 9,442,216.80
  4. Step 4: Simplify right side
    20,793,621.60x = 294,308,583,576,385
  5. Step 5: Solve for x
    x = 294,308,583,576,385/20,793,621.60
  6. Step 6: Final answer
    x = 14,153,791.45

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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.