Home / 10,345,123.10-15,491,112.60-8,201,644.40

Finding the Fourth Proportional to 10,345,123.10, 15,491,112.60 and 8,201,644.40

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Solution

The fourth proportional to 10,345,123.10, 15,491,112.60 and 8,201,644.40 is: 12,281,400.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,345,123.10 : 15,491,112.60 = 8,201,644.40 : x
  2. Step 2: Convert to fraction form
    10,345,123.10/15,491,112.60 = 8,201,644.40/x
  3. Step 3: Cross multiply
    10,345,123.10x = 15,491,112.60 × 8,201,644.40
  4. Step 4: Simplify right side
    10,345,123.10x = 127,052,596,905,559.44
  5. Step 5: Solve for x
    x = 127,052,596,905,559.44/10,345,123.10
  6. Step 6: Final answer
    x = 12,281,400.20

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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.