Home / 203,472,140.10-305,226,872.55-67,157,823.30

Finding the Fourth Proportional to 203,472,140.10, 305,226,872.55 and 67,157,823.30

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Solution

The fourth proportional to 203,472,140.10, 305,226,872.55 and 67,157,823.30 is: 100,742,894.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,472,140.10 : 305,226,872.55 = 67,157,823.30 : x
  2. Step 2: Convert to fraction form
    203,472,140.10/305,226,872.55 = 67,157,823.30/x
  3. Step 3: Cross multiply
    203,472,140.10x = 305,226,872.55 × 67,157,823.30
  4. Step 4: Simplify right side
    203,472,140.10x = 20,498,372,373,124,520
  5. Step 5: Solve for x
    x = 20,498,372,373,124,520/203,472,140.10
  6. Step 6: Final answer
    x = 100,742,894.64

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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.