Home / 120,998,128.20-181,497,192.30-40,208,598.60

Finding the Fourth Proportional to 120,998,128.20, 181,497,192.30 and 40,208,598.60

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Solution

The fourth proportional to 120,998,128.20, 181,497,192.30 and 40,208,598.60 is: 60,312,897.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,998,128.20 : 181,497,192.30 = 40,208,598.60 : x
  2. Step 2: Convert to fraction form
    120,998,128.20/181,497,192.30 = 40,208,598.60/x
  3. Step 3: Cross multiply
    120,998,128.20x = 181,497,192.30 × 40,208,598.60
  4. Step 4: Simplify right side
    120,998,128.20x = 7,297,747,752,217,712
  5. Step 5: Solve for x
    x = 7,297,747,752,217,712/120,998,128.20
  6. Step 6: Final answer
    x = 60,312,897.90

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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.