Home / 15,028,986.52-20,740,008.72-8,153,466.76

Finding the Fourth Proportional to 15,028,986.52, 20,740,008.72 and 8,153,466.76

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Solution

The fourth proportional to 15,028,986.52, 20,740,008.72 and 8,153,466.76 is: 11,251,788.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,028,986.52 : 20,740,008.72 = 8,153,466.76 : x
  2. Step 2: Convert to fraction form
    15,028,986.52/20,740,008.72 = 8,153,466.76/x
  3. Step 3: Cross multiply
    15,028,986.52x = 20,740,008.72 × 8,153,466.76
  4. Step 4: Simplify right side
    15,028,986.52x = 169,102,971,700,630.12
  5. Step 5: Solve for x
    x = 169,102,971,700,630.12/15,028,986.52
  6. Step 6: Final answer
    x = 11,251,788.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.