Home / 170,830,354.80-256,245,532.20-142,108,921.20

Finding the Fourth Proportional to 170,830,354.80, 256,245,532.20 and 142,108,921.20

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Solution

The fourth proportional to 170,830,354.80, 256,245,532.20 and 142,108,921.20 is: 213,163,381.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,830,354.80 : 256,245,532.20 = 142,108,921.20 : x
  2. Step 2: Convert to fraction form
    170,830,354.80/256,245,532.20 = 142,108,921.20/x
  3. Step 3: Cross multiply
    170,830,354.80x = 256,245,532.20 × 142,108,921.20
  4. Step 4: Simplify right side
    170,830,354.80x = 36,414,776,143,261,856
  5. Step 5: Solve for x
    x = 36,414,776,143,261,856/170,830,354.80
  6. Step 6: Final answer
    x = 213,163,381.80

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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.