Home / 28,420,854.44-42,614,962.79-11,128,809.20

Finding the Fourth Proportional to 28,420,854.44, 42,614,962.79 and 11,128,809.20

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Solution

The fourth proportional to 28,420,854.44, 42,614,962.79 and 11,128,809.20 is: 16,686,823.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,420,854.44 : 42,614,962.79 = 11,128,809.20 : x
  2. Step 2: Convert to fraction form
    28,420,854.44/42,614,962.79 = 11,128,809.20/x
  3. Step 3: Cross multiply
    28,420,854.44x = 42,614,962.79 × 11,128,809.20
  4. Step 4: Simplify right side
    28,420,854.44x = 474,253,789,982,831.62
  5. Step 5: Solve for x
    x = 474,253,789,982,831.62/28,420,854.44
  6. Step 6: Final answer
    x = 16,686,823.79

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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.