Home / 20,219,435.10-30,329,152.65-10,120,743.90

Finding the Fourth Proportional to 20,219,435.10, 30,329,152.65 and 10,120,743.90

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Solution

The fourth proportional to 20,219,435.10, 30,329,152.65 and 10,120,743.90 is: 15,181,115.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219,435.10 : 30,329,152.65 = 10,120,743.90 : x
  2. Step 2: Convert to fraction form
    20,219,435.10/30,329,152.65 = 10,120,743.90/x
  3. Step 3: Cross multiply
    20,219,435.10x = 30,329,152.65 × 10,120,743.90
  4. Step 4: Simplify right side
    20,219,435.10x = 306,953,586,674,656.31
  5. Step 5: Solve for x
    x = 306,953,586,674,656.31/20,219,435.10
  6. Step 6: Final answer
    x = 15,181,115.85

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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.