Home / 15,028,889.40-20,739,874.86-8,153,369.64

Finding the Fourth Proportional to 15,028,889.40, 20,739,874.86 and 8,153,369.64

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Solution

The fourth proportional to 15,028,889.40, 20,739,874.86 and 8,153,369.64 is: 11,251,654.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,028,889.40 : 20,739,874.86 = 8,153,369.64 : x
  2. Step 2: Convert to fraction form
    15,028,889.40/20,739,874.86 = 8,153,369.64/x
  3. Step 3: Cross multiply
    15,028,889.40x = 20,739,874.86 × 8,153,369.64
  4. Step 4: Simplify right side
    15,028,889.40x = 169,099,866,020,923.25
  5. Step 5: Solve for x
    x = 169,099,866,020,923.25/15,028,889.40
  6. Step 6: Final answer
    x = 11,251,654.17

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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.