Home / 313,986,811.20-470,980,216.80-204,217,672.65

Finding the Fourth Proportional to 313,986,811.20, 470,980,216.80 and 204,217,672.65

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Solution

The fourth proportional to 313,986,811.20, 470,980,216.80 and 204,217,672.65 is: 306,326,508.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,986,811.20 : 470,980,216.80 = 204,217,672.65 : x
  2. Step 2: Convert to fraction form
    313,986,811.20/470,980,216.80 = 204,217,672.65/x
  3. Step 3: Cross multiply
    313,986,811.20x = 470,980,216.80 × 204,217,672.65
  4. Step 4: Simplify right side
    313,986,811.20x = 96,182,483,739,088,432
  5. Step 5: Solve for x
    x = 96,182,483,739,088,432/313,986,811.20
  6. Step 6: Final answer
    x = 306,326,508.98

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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.