Home / 28,172,011.26-42,262,029.33-8,742,915.90

Finding the Fourth Proportional to 28,172,011.26, 42,262,029.33 and 8,742,915.90

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Solution

The fourth proportional to 28,172,011.26, 42,262,029.33 and 8,742,915.90 is: 13,115,619.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,172,011.26 : 42,262,029.33 = 8,742,915.90 : x
  2. Step 2: Convert to fraction form
    28,172,011.26/42,262,029.33 = 8,742,915.90/x
  3. Step 3: Cross multiply
    28,172,011.26x = 42,262,029.33 × 8,742,915.90
  4. Step 4: Simplify right side
    28,172,011.26x = 369,493,368,195,523.38
  5. Step 5: Solve for x
    x = 369,493,368,195,523.38/28,172,011.26
  6. Step 6: Final answer
    x = 13,115,619.07

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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.