Home / 28,512,934.80-42,771,040.60-8,321,293.20

Finding the Fourth Proportional to 28,512,934.80, 42,771,040.60 and 8,321,293.20

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Solution

The fourth proportional to 28,512,934.80, 42,771,040.60 and 8,321,293.20 is: 12,482,417.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,512,934.80 : 42,771,040.60 = 8,321,293.20 : x
  2. Step 2: Convert to fraction form
    28,512,934.80/42,771,040.60 = 8,321,293.20/x
  3. Step 3: Cross multiply
    28,512,934.80x = 42,771,040.60 × 8,321,293.20
  4. Step 4: Simplify right side
    28,512,934.80x = 355,910,369,301,703.94
  5. Step 5: Solve for x
    x = 355,910,369,301,703.94/28,512,934.80
  6. Step 6: Final answer
    x = 12,482,417.96

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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.