Home / 211,427,793.30-317,047,211.55-81,992,385.30

Finding the Fourth Proportional to 211,427,793.30, 317,047,211.55 and 81,992,385.30

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Solution

The fourth proportional to 211,427,793.30, 317,047,211.55 and 81,992,385.30 is: 122,951,938.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,427,793.30 : 317,047,211.55 = 81,992,385.30 : x
  2. Step 2: Convert to fraction form
    211,427,793.30/317,047,211.55 = 81,992,385.30/x
  3. Step 3: Cross multiply
    211,427,793.30x = 317,047,211.55 × 81,992,385.30
  4. Step 4: Simplify right side
    211,427,793.30x = 25,995,457,127,698,212
  5. Step 5: Solve for x
    x = 25,995,457,127,698,212/211,427,793.30
  6. Step 6: Final answer
    x = 122,951,938.92

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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.