Home / 126,822,420.80-190,233,631.20-82,984,443.20

Finding the Fourth Proportional to 126,822,420.80, 190,233,631.20 and 82,984,443.20

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Solution

The fourth proportional to 126,822,420.80, 190,233,631.20 and 82,984,443.20 is: 124,476,664.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,822,420.80 : 190,233,631.20 = 82,984,443.20 : x
  2. Step 2: Convert to fraction form
    126,822,420.80/190,233,631.20 = 82,984,443.20/x
  3. Step 3: Cross multiply
    126,822,420.80x = 190,233,631.20 × 82,984,443.20
  4. Step 4: Simplify right side
    126,822,420.80x = 15,786,431,963,046,148
  5. Step 5: Solve for x
    x = 15,786,431,963,046,148/126,822,420.80
  6. Step 6: Final answer
    x = 124,476,664.80

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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.