Home / 28,758,668.64-43,138,888.70-12,576,290.19

Finding the Fourth Proportional to 28,758,668.64, 43,138,888.70 and 12,576,290.19

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Solution

The fourth proportional to 28,758,668.64, 43,138,888.70 and 12,576,290.19 is: 18,864,822.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,758,668.64 : 43,138,888.70 = 12,576,290.19 : x
  2. Step 2: Convert to fraction form
    28,758,668.64/43,138,888.70 = 12,576,290.19/x
  3. Step 3: Cross multiply
    28,758,668.64x = 43,138,888.70 × 12,576,290.19
  4. Step 4: Simplify right side
    28,758,668.64x = 542,527,182,818,680.31
  5. Step 5: Solve for x
    x = 542,527,182,818,680.31/28,758,668.64
  6. Step 6: Final answer
    x = 18,864,822.62

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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.