Home / 28,298,089.72-42,452,412.54-9,126,847.72

Finding the Fourth Proportional to 28,298,089.72, 42,452,412.54 and 9,126,847.72

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Solution

The fourth proportional to 28,298,089.72, 42,452,412.54 and 9,126,847.72 is: 13,691,973.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,298,089.72 : 42,452,412.54 = 9,126,847.72 : x
  2. Step 2: Convert to fraction form
    28,298,089.72/42,452,412.54 = 9,126,847.72/x
  3. Step 3: Cross multiply
    28,298,089.72x = 42,452,412.54 × 9,126,847.72
  4. Step 4: Simplify right side
    28,298,089.72x = 387,456,704,599,198.44
  5. Step 5: Solve for x
    x = 387,456,704,599,198.44/28,298,089.72
  6. Step 6: Final answer
    x = 13,691,973.86

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1.5x scale

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.