Home / 1,238,906,222.20-1,858,639,307.64-409,857,906.88

Finding the Fourth Proportional to 1,238,906,222.20, 1,858,639,307.64 and 409,857,906.88

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Solution

The fourth proportional to 1,238,906,222.20, 1,858,639,307.64 and 409,857,906.88 is: 614,879,482.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,906,222.20 : 1,858,639,307.64 = 409,857,906.88 : x
  2. Step 2: Convert to fraction form
    1,238,906,222.20/1,858,639,307.64 = 409,857,906.88/x
  3. Step 3: Cross multiply
    1,238,906,222.20x = 1,858,639,307.64 × 409,857,906.88
  4. Step 4: Simplify right side
    1,238,906,222.20x = 761,778,016,274,222,848
  5. Step 5: Solve for x
    x = 761,778,016,274,222,848/1,238,906,222.20
  6. Step 6: Final answer
    x = 614,879,482.10

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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.