Home / 28,083,460.40-42,129,856.20-11,044,689.20

Finding the Fourth Proportional to 28,083,460.40, 42,129,856.20 and 11,044,689.20

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Solution

The fourth proportional to 28,083,460.40, 42,129,856.20 and 11,044,689.20 is: 16,568,868.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,083,460.40 : 42,129,856.20 = 11,044,689.20 : x
  2. Step 2: Convert to fraction form
    28,083,460.40/42,129,856.20 = 11,044,689.20/x
  3. Step 3: Cross multiply
    28,083,460.40x = 42,129,856.20 × 11,044,689.20
  4. Step 4: Simplify right side
    28,083,460.40x = 465,311,167,769,693.06
  5. Step 5: Solve for x
    x = 465,311,167,769,693.06/28,083,460.40
  6. Step 6: Final answer
    x = 16,568,868.69

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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.