Home / 105,671,617.20-158,507,425.80-66,929,568.30

Finding the Fourth Proportional to 105,671,617.20, 158,507,425.80 and 66,929,568.30

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Solution

The fourth proportional to 105,671,617.20, 158,507,425.80 and 66,929,568.30 is: 100,394,352.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,671,617.20 : 158,507,425.80 = 66,929,568.30 : x
  2. Step 2: Convert to fraction form
    105,671,617.20/158,507,425.80 = 66,929,568.30/x
  3. Step 3: Cross multiply
    105,671,617.20x = 158,507,425.80 × 66,929,568.30
  4. Step 4: Simplify right side
    105,671,617.20x = 10,608,833,581,138,282
  5. Step 5: Solve for x
    x = 10,608,833,581,138,282/105,671,617.20
  6. Step 6: Final answer
    x = 100,394,352.45

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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.