Home / 20,368,790.10-28,108,368.36-11,201,432.85

Finding the Fourth Proportional to 20,368,790.10, 28,108,368.36 and 11,201,432.85

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Solution

The fourth proportional to 20,368,790.10, 28,108,368.36 and 11,201,432.85 is: 15,457,668.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,368,790.10 : 28,108,368.36 = 11,201,432.85 : x
  2. Step 2: Convert to fraction form
    20,368,790.10/28,108,368.36 = 11,201,432.85/x
  3. Step 3: Cross multiply
    20,368,790.10x = 28,108,368.36 × 11,201,432.85
  4. Step 4: Simplify right side
    20,368,790.10x = 314,854,000,707,604.62
  5. Step 5: Solve for x
    x = 314,854,000,707,604.62/20,368,790.10
  6. Step 6: Final answer
    x = 15,457,668.28

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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.