Home / 839,832,019.20-1,259,748,028.80-226,478,246.40

Finding the Fourth Proportional to 839,832,019.20, 1,259,748,028.80 and 226,478,246.40

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Solution

The fourth proportional to 839,832,019.20, 1,259,748,028.80 and 226,478,246.40 is: 339,717,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,832,019.20 : 1,259,748,028.80 = 226,478,246.40 : x
  2. Step 2: Convert to fraction form
    839,832,019.20/1,259,748,028.80 = 226,478,246.40/x
  3. Step 3: Cross multiply
    839,832,019.20x = 1,259,748,028.80 × 226,478,246.40
  4. Step 4: Simplify right side
    839,832,019.20x = 285,305,524,468,480,704
  5. Step 5: Solve for x
    x = 285,305,524,468,480,704/839,832,019.20
  6. Step 6: Final answer
    x = 339,717,369.60

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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.