Home / 20,793,810.60-31,192,800.30-7,145,159.40

Finding the Fourth Proportional to 20,793,810.60, 31,192,800.30 and 7,145,159.40

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Solution

The fourth proportional to 20,793,810.60, 31,192,800.30 and 7,145,159.40 is: 10,718,455.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,793,810.60 : 31,192,800.30 = 7,145,159.40 : x
  2. Step 2: Convert to fraction form
    20,793,810.60/31,192,800.30 = 7,145,159.40/x
  3. Step 3: Cross multiply
    20,793,810.60x = 31,192,800.30 × 7,145,159.40
  4. Step 4: Simplify right side
    20,793,810.60x = 222,877,530,275,867.84
  5. Step 5: Solve for x
    x = 222,877,530,275,867.84/20,793,810.60
  6. Step 6: Final answer
    x = 10,718,455.34

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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.