Home / 120,660,620.40-180,990,930.60-29,784,209.40

Finding the Fourth Proportional to 120,660,620.40, 180,990,930.60 and 29,784,209.40

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Solution

The fourth proportional to 120,660,620.40, 180,990,930.60 and 29,784,209.40 is: 44,676,314.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,660,620.40 : 180,990,930.60 = 29,784,209.40 : x
  2. Step 2: Convert to fraction form
    120,660,620.40/180,990,930.60 = 29,784,209.40/x
  3. Step 3: Cross multiply
    120,660,620.40x = 180,990,930.60 × 29,784,209.40
  4. Step 4: Simplify right side
    120,660,620.40x = 5,390,671,776,491,267
  5. Step 5: Solve for x
    x = 5,390,671,776,491,267/120,660,620.40
  6. Step 6: Final answer
    x = 44,676,314.10

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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.