Home / 317,969,216.80-476,953,825.20-172,472,480.80

Finding the Fourth Proportional to 317,969,216.80, 476,953,825.20 and 172,472,480.80

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Solution

The fourth proportional to 317,969,216.80, 476,953,825.20 and 172,472,480.80 is: 258,708,721.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,969,216.80 : 476,953,825.20 = 172,472,480.80 : x
  2. Step 2: Convert to fraction form
    317,969,216.80/476,953,825.20 = 172,472,480.80/x
  3. Step 3: Cross multiply
    317,969,216.80x = 476,953,825.20 × 172,472,480.80
  4. Step 4: Simplify right side
    317,969,216.80x = 82,261,409,459,293,552
  5. Step 5: Solve for x
    x = 82,261,409,459,293,552/317,969,216.80
  6. Step 6: Final answer
    x = 258,708,721.20

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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.