Home / 120,661,119.40-180,991,679.10-29,784,708.40

Finding the Fourth Proportional to 120,661,119.40, 180,991,679.10 and 29,784,708.40

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Solution

The fourth proportional to 120,661,119.40, 180,991,679.10 and 29,784,708.40 is: 44,677,062.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,661,119.40 : 180,991,679.10 = 29,784,708.40 : x
  2. Step 2: Convert to fraction form
    120,661,119.40/180,991,679.10 = 29,784,708.40/x
  3. Step 3: Cross multiply
    120,661,119.40x = 180,991,679.10 × 29,784,708.40
  4. Step 4: Simplify right side
    120,661,119.40x = 5,390,784,384,819,874
  5. Step 5: Solve for x
    x = 5,390,784,384,819,874/120,661,119.40
  6. Step 6: Final answer
    x = 44,677,062.60

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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.