Home / 20,845,497.60-31,267,209.60-10,749,139.20

Finding the Fourth Proportional to 20,845,497.60, 31,267,209.60 and 10,749,139.20

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Solution

The fourth proportional to 20,845,497.60, 31,267,209.60 and 10,749,139.20 is: 16,123,174.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,845,497.60 : 31,267,209.60 = 10,749,139.20 : x
  2. Step 2: Convert to fraction form
    20,845,497.60/31,267,209.60 = 10,749,139.20/x
  3. Step 3: Cross multiply
    20,845,497.60x = 31,267,209.60 × 10,749,139.20
  4. Step 4: Simplify right side
    20,845,497.60x = 336,095,588,385,976.31
  5. Step 5: Solve for x
    x = 336,095,588,385,976.31/20,845,497.60
  6. Step 6: Final answer
    x = 16,123,174.17

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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.