Home / 20,750,201.71-31,129,501.80-7,288,079.47

Finding the Fourth Proportional to 20,750,201.71, 31,129,501.80 and 7,288,079.47

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Solution

The fourth proportional to 20,750,201.71, 31,129,501.80 and 7,288,079.47 is: 10,933,594.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,750,201.71 : 31,129,501.80 = 7,288,079.47 : x
  2. Step 2: Convert to fraction form
    20,750,201.71/31,129,501.80 = 7,288,079.47/x
  3. Step 3: Cross multiply
    20,750,201.71x = 31,129,501.80 × 7,288,079.47
  4. Step 4: Simplify right side
    20,750,201.71x = 226,874,282,979,908.03
  5. Step 5: Solve for x
    x = 226,874,282,979,908.03/20,750,201.71
  6. Step 6: Final answer
    x = 10,933,594.10

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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.