Home / 20,793,420.90-31,189,548.15-9,433,851.30

Finding the Fourth Proportional to 20,793,420.90, 31,189,548.15 and 9,433,851.30

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Solution

The fourth proportional to 20,793,420.90, 31,189,548.15 and 9,433,851.30 is: 14,150,512.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,793,420.90 : 31,189,548.15 = 9,433,851.30 : x
  2. Step 2: Convert to fraction form
    20,793,420.90/31,189,548.15 = 9,433,851.30/x
  3. Step 3: Cross multiply
    20,793,420.90x = 31,189,548.15 × 9,433,851.30
  4. Step 4: Simplify right side
    20,793,420.90x = 294,237,559,361,290.12
  5. Step 5: Solve for x
    x = 294,237,559,361,290.12/20,793,420.90
  6. Step 6: Final answer
    x = 14,150,512.36

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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.