Home / 122,074,719.40-168,507,400.98-80,834,897.80

Finding the Fourth Proportional to 122,074,719.40, 168,507,400.98 and 80,834,897.80

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Solution

The fourth proportional to 122,074,719.40, 168,507,400.98 and 80,834,897.80 is: 111,581,485.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,074,719.40 : 168,507,400.98 = 80,834,897.80 : x
  2. Step 2: Convert to fraction form
    122,074,719.40/168,507,400.98 = 80,834,897.80/x
  3. Step 3: Cross multiply
    122,074,719.40x = 168,507,400.98 × 80,834,897.80
  4. Step 4: Simplify right side
    122,074,719.40x = 13,621,278,536,761,918
  5. Step 5: Solve for x
    x = 13,621,278,536,761,918/122,074,719.40
  6. Step 6: Final answer
    x = 111,581,485.53

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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.