Home / 28,758,694.75-43,138,927.86-12,576,316.30

Finding the Fourth Proportional to 28,758,694.75, 43,138,927.86 and 12,576,316.30

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Solution

The fourth proportional to 28,758,694.75, 43,138,927.86 and 12,576,316.30 is: 18,864,861.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,758,694.75 : 43,138,927.86 = 12,576,316.30 : x
  2. Step 2: Convert to fraction form
    28,758,694.75/43,138,927.86 = 12,576,316.30/x
  3. Step 3: Cross multiply
    28,758,694.75x = 43,138,927.86 × 12,576,316.30
  4. Step 4: Simplify right side
    28,758,694.75x = 542,528,801,610,242.12
  5. Step 5: Solve for x
    x = 542,528,801,610,242.12/28,758,694.75
  6. Step 6: Final answer
    x = 18,864,861.79

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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.