Home / 471,551,147.30-707,326,720.95-213,270,821.30

Finding the Fourth Proportional to 471,551,147.30, 707,326,720.95 and 213,270,821.30

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Solution

The fourth proportional to 471,551,147.30, 707,326,720.95 and 213,270,821.30 is: 319,906,231.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,551,147.30 : 707,326,720.95 = 213,270,821.30 : x
  2. Step 2: Convert to fraction form
    471,551,147.30/707,326,720.95 = 213,270,821.30/x
  3. Step 3: Cross multiply
    471,551,147.30x = 707,326,720.95 × 213,270,821.30
  4. Step 4: Simplify right side
    471,551,147.30x = 150,852,150,704,442,432
  5. Step 5: Solve for x
    x = 150,852,150,704,442,432/471,551,147.30
  6. Step 6: Final answer
    x = 319,906,231.95

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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.