Home / 122,395,019.13-168,903,542.03-66,639,800.04

Finding the Fourth Proportional to 122,395,019.13, 168,903,542.03 and 66,639,800.04

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Solution

The fourth proportional to 122,395,019.13, 168,903,542.03 and 66,639,800.04 is: 91,962,061.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,395,019.13 : 168,903,542.03 = 66,639,800.04 : x
  2. Step 2: Convert to fraction form
    122,395,019.13/168,903,542.03 = 66,639,800.04/x
  3. Step 3: Cross multiply
    122,395,019.13x = 168,903,542.03 × 66,639,800.04
  4. Step 4: Simplify right side
    122,395,019.13x = 11,255,698,266,593,736
  5. Step 5: Solve for x
    x = 11,255,698,266,593,736/122,395,019.13
  6. Step 6: Final answer
    x = 91,962,061.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.