Home / 20,679,074.83-28,537,334.46-11,387,508.94

Finding the Fourth Proportional to 20,679,074.83, 28,537,334.46 and 11,387,508.94

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Solution

The fourth proportional to 20,679,074.83, 28,537,334.46 and 11,387,508.94 is: 15,714,878.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,679,074.83 : 28,537,334.46 = 11,387,508.94 : x
  2. Step 2: Convert to fraction form
    20,679,074.83/28,537,334.46 = 11,387,508.94/x
  3. Step 3: Cross multiply
    20,679,074.83x = 28,537,334.46 × 11,387,508.94
  4. Step 4: Simplify right side
    20,679,074.83x = 324,969,151,230,082.50
  5. Step 5: Solve for x
    x = 324,969,151,230,082.50/20,679,074.83
  6. Step 6: Final answer
    x = 15,714,878.63

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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.