Home / 120,145,234.40-180,217,851.60-51,940,383.20

Finding the Fourth Proportional to 120,145,234.40, 180,217,851.60 and 51,940,383.20

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Solution

The fourth proportional to 120,145,234.40, 180,217,851.60 and 51,940,383.20 is: 77,910,574.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,145,234.40 : 180,217,851.60 = 51,940,383.20 : x
  2. Step 2: Convert to fraction form
    120,145,234.40/180,217,851.60 = 51,940,383.20/x
  3. Step 3: Cross multiply
    120,145,234.40x = 180,217,851.60 × 51,940,383.20
  4. Step 4: Simplify right side
    120,145,234.40x = 9,360,584,271,584,734
  5. Step 5: Solve for x
    x = 9,360,584,271,584,734/120,145,234.40
  6. Step 6: Final answer
    x = 77,910,574.80

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1.5x scale

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.