Home / 993,840,019.20-1,490,760,028.80-266,902,214.40

Finding the Fourth Proportional to 993,840,019.20, 1,490,760,028.80 and 266,902,214.40

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Solution

The fourth proportional to 993,840,019.20, 1,490,760,028.80 and 266,902,214.40 is: 400,353,321.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,840,019.20 : 1,490,760,028.80 = 266,902,214.40 : x
  2. Step 2: Convert to fraction form
    993,840,019.20/1,490,760,028.80 = 266,902,214.40/x
  3. Step 3: Cross multiply
    993,840,019.20x = 1,490,760,028.80 × 266,902,214.40
  4. Step 4: Simplify right side
    993,840,019.20x = 397,887,152,825,727,744
  5. Step 5: Solve for x
    x = 397,887,152,825,727,744/993,840,019.20
  6. Step 6: Final answer
    x = 400,353,321.60

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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.