Home / 20,736,078.40-31,104,117.60-7,272,906.40

Finding the Fourth Proportional to 20,736,078.40, 31,104,117.60 and 7,272,906.40

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Solution

The fourth proportional to 20,736,078.40, 31,104,117.60 and 7,272,906.40 is: 10,909,359.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,078.40 : 31,104,117.60 = 7,272,906.40 : x
  2. Step 2: Convert to fraction form
    20,736,078.40/31,104,117.60 = 7,272,906.40/x
  3. Step 3: Cross multiply
    20,736,078.40x = 31,104,117.60 × 7,272,906.40
  4. Step 4: Simplify right side
    20,736,078.40x = 226,217,335,959,392.66
  5. Step 5: Solve for x
    x = 226,217,335,959,392.66/20,736,078.40
  6. Step 6: Final answer
    x = 10,909,359.60

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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.