Home / 28,499,228.80-42,748,843.20-8,305,129.60

Finding the Fourth Proportional to 28,499,228.80, 42,748,843.20 and 8,305,129.60

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Solution

The fourth proportional to 28,499,228.80, 42,748,843.20 and 8,305,129.60 is: 12,457,694.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,499,228.80 : 42,748,843.20 = 8,305,129.60 : x
  2. Step 2: Convert to fraction form
    28,499,228.80/42,748,843.20 = 8,305,129.60/x
  3. Step 3: Cross multiply
    28,499,228.80x = 42,748,843.20 × 8,305,129.60
  4. Step 4: Simplify right side
    28,499,228.80x = 355,034,683,026,078.75
  5. Step 5: Solve for x
    x = 355,034,683,026,078.75/28,499,228.80
  6. Step 6: Final answer
    x = 12,457,694.40

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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.