Home / 28,420,853.94-42,614,962.04-11,128,808.70

Finding the Fourth Proportional to 28,420,853.94, 42,614,962.04 and 11,128,808.70

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Solution

The fourth proportional to 28,420,853.94, 42,614,962.04 and 11,128,808.70 is: 16,686,823.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,420,853.94 : 42,614,962.04 = 11,128,808.70 : x
  2. Step 2: Convert to fraction form
    28,420,853.94/42,614,962.04 = 11,128,808.70/x
  3. Step 3: Cross multiply
    28,420,853.94x = 42,614,962.04 × 11,128,808.70
  4. Step 4: Simplify right side
    28,420,853.94x = 474,253,760,328,743.69
  5. Step 5: Solve for x
    x = 474,253,760,328,743.69/28,420,853.94
  6. Step 6: Final answer
    x = 16,686,823.04

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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.