Home / 20,308,113.39-28,025,030.61-11,015,660.20

Finding the Fourth Proportional to 20,308,113.39, 28,025,030.61 and 11,015,660.20

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Solution

The fourth proportional to 20,308,113.39, 28,025,030.61 and 11,015,660.20 is: 15,201,521.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,308,113.39 : 28,025,030.61 = 11,015,660.20 : x
  2. Step 2: Convert to fraction form
    20,308,113.39/28,025,030.61 = 11,015,660.20/x
  3. Step 3: Cross multiply
    20,308,113.39x = 28,025,030.61 × 11,015,660.20
  4. Step 4: Simplify right side
    20,308,113.39x = 308,714,214,321,897.88
  5. Step 5: Solve for x
    x = 308,714,214,321,897.88/20,308,113.39
  6. Step 6: Final answer
    x = 15,201,521.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.