Home / 1,123,392,393.20-1,681,804,007.40-800,906,121.20

Finding the Fourth Proportional to 1,123,392,393.20, 1,681,804,007.40 and 800,906,121.20

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Solution

The fourth proportional to 1,123,392,393.20, 1,681,804,007.40 and 800,906,121.20 is: 1,199,017,486.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,392,393.20 : 1,681,804,007.40 = 800,906,121.20 : x
  2. Step 2: Convert to fraction form
    1,123,392,393.20/1,681,804,007.40 = 800,906,121.20/x
  3. Step 3: Cross multiply
    1,123,392,393.20x = 1,681,804,007.40 × 800,906,121.20
  4. Step 4: Simplify right side
    1,123,392,393.20x = 1,346,967,124,185,350,144
  5. Step 5: Solve for x
    x = 1,346,967,124,185,350,144/1,123,392,393.20
  6. Step 6: Final answer
    x = 1,199,017,486.98

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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.