Home / 396,539,176.83-547,191,172.88-217,913,672.80

Finding the Fourth Proportional to 396,539,176.83, 547,191,172.88 and 217,913,672.80

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Solution

The fourth proportional to 396,539,176.83, 547,191,172.88 and 217,913,672.80 is: 300,702,793.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,539,176.83 : 547,191,172.88 = 217,913,672.80 : x
  2. Step 2: Convert to fraction form
    396,539,176.83/547,191,172.88 = 217,913,672.80/x
  3. Step 3: Cross multiply
    396,539,176.83x = 547,191,172.88 × 217,913,672.80
  4. Step 4: Simplify right side
    396,539,176.83x = 119,240,438,206,020,560
  5. Step 5: Solve for x
    x = 119,240,438,206,020,560/396,539,176.83
  6. Step 6: Final answer
    x = 300,702,793.50

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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.