Home / 28,479,741.28-39,302,231.67-15,427,000.19

Finding the Fourth Proportional to 28,479,741.28, 39,302,231.67 and 15,427,000.19

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Solution

The fourth proportional to 28,479,741.28, 39,302,231.67 and 15,427,000.19 is: 21,289,362.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,479,741.28 : 39,302,231.67 = 15,427,000.19 : x
  2. Step 2: Convert to fraction form
    28,479,741.28/39,302,231.67 = 15,427,000.19/x
  3. Step 3: Cross multiply
    28,479,741.28x = 39,302,231.67 × 15,427,000.19
  4. Step 4: Simplify right side
    28,479,741.28x = 606,315,535,440,514
  5. Step 5: Solve for x
    x = 606,315,535,440,514/28,479,741.28
  6. Step 6: Final answer
    x = 21,289,362.48

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Double scale
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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.