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Finding the Fourth Proportional to 170,642,257.80, 255,963,386.70 and 168,941,646.60

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Solution

The fourth proportional to 170,642,257.80, 255,963,386.70 and 168,941,646.60 is: 253,412,469.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,642,257.80 : 255,963,386.70 = 168,941,646.60 : x
  2. Step 2: Convert to fraction form
    170,642,257.80/255,963,386.70 = 168,941,646.60/x
  3. Step 3: Cross multiply
    170,642,257.80x = 255,963,386.70 × 168,941,646.60
  4. Step 4: Simplify right side
    170,642,257.80x = 43,242,876,018,410,536
  5. Step 5: Solve for x
    x = 43,242,876,018,410,536/170,642,257.80
  6. Step 6: Final answer
    x = 253,412,469.90

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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.