Home / 212,891,010.80-319,336,516.20-144,866,562.80

Finding the Fourth Proportional to 212,891,010.80, 319,336,516.20 and 144,866,562.80

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Solution

The fourth proportional to 212,891,010.80, 319,336,516.20 and 144,866,562.80 is: 217,299,844.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,891,010.80 : 319,336,516.20 = 144,866,562.80 : x
  2. Step 2: Convert to fraction form
    212,891,010.80/319,336,516.20 = 144,866,562.80/x
  3. Step 3: Cross multiply
    212,891,010.80x = 319,336,516.20 × 144,866,562.80
  4. Step 4: Simplify right side
    212,891,010.80x = 46,261,183,478,420,520
  5. Step 5: Solve for x
    x = 46,261,183,478,420,520/212,891,010.80
  6. Step 6: Final answer
    x = 217,299,844.20

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1.5x scale

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.