Home / 28,209,587.60-42,328,378.20-11,170,816.40

Finding the Fourth Proportional to 28,209,587.60, 42,328,378.20 and 11,170,816.40

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Solution

The fourth proportional to 28,209,587.60, 42,328,378.20 and 11,170,816.40 is: 16,761,767.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,209,587.60 : 42,328,378.20 = 11,170,816.40 : x
  2. Step 2: Convert to fraction form
    28,209,587.60/42,328,378.20 = 11,170,816.40/x
  3. Step 3: Cross multiply
    28,209,587.60x = 42,328,378.20 × 11,170,816.40
  4. Step 4: Simplify right side
    28,209,587.60x = 472,842,541,381,962.50
  5. Step 5: Solve for x
    x = 472,842,541,381,962.50/28,209,587.60
  6. Step 6: Final answer
    x = 16,761,767.24

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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.