Home / 28,488,576.27-39,314,180.28-15,436,188.48

Finding the Fourth Proportional to 28,488,576.27, 39,314,180.28 and 15,436,188.48

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Solution

The fourth proportional to 28,488,576.27, 39,314,180.28 and 15,436,188.48 is: 21,301,910.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,488,576.27 : 39,314,180.28 = 15,436,188.48 : x
  2. Step 2: Convert to fraction form
    28,488,576.27/39,314,180.28 = 15,436,188.48/x
  3. Step 3: Cross multiply
    28,488,576.27x = 39,314,180.28 × 15,436,188.48
  4. Step 4: Simplify right side
    28,488,576.27x = 606,861,096,738,779.25
  5. Step 5: Solve for x
    x = 606,861,096,738,779.25/28,488,576.27
  6. Step 6: Final answer
    x = 21,301,910.32

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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.