Home / 20,368,320.15-28,107,426.15-11,548,364.76

Finding the Fourth Proportional to 20,368,320.15, 28,107,426.15 and 11,548,364.76

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Solution

The fourth proportional to 20,368,320.15, 28,107,426.15 and 11,548,364.76 is: 15,936,258.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,368,320.15 : 28,107,426.15 = 11,548,364.76 : x
  2. Step 2: Convert to fraction form
    20,368,320.15/28,107,426.15 = 11,548,364.76/x
  3. Step 3: Cross multiply
    20,368,320.15x = 28,107,426.15 × 11,548,364.76
  4. Step 4: Simplify right side
    20,368,320.15x = 324,594,809,644,962.44
  5. Step 5: Solve for x
    x = 324,594,809,644,962.44/20,368,320.15
  6. Step 6: Final answer
    x = 15,936,258.23

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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.