Home / 120,690,115.20-181,035,172.80-44,015,644.80

Finding the Fourth Proportional to 120,690,115.20, 181,035,172.80 and 44,015,644.80

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Solution

The fourth proportional to 120,690,115.20, 181,035,172.80 and 44,015,644.80 is: 66,023,467.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,690,115.20 : 181,035,172.80 = 44,015,644.80 : x
  2. Step 2: Convert to fraction form
    120,690,115.20/181,035,172.80 = 44,015,644.80/x
  3. Step 3: Cross multiply
    120,690,115.20x = 181,035,172.80 × 44,015,644.80
  4. Step 4: Simplify right side
    120,690,115.20x = 7,968,379,862,271,421
  5. Step 5: Solve for x
    x = 7,968,379,862,271,421/120,690,115.20
  6. Step 6: Final answer
    x = 66,023,467.20

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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.