Home / 1,328,605,972.80-1,992,908,959.20-1,320,953,222.40

Finding the Fourth Proportional to 1,328,605,972.80, 1,992,908,959.20 and 1,320,953,222.40

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Solution

The fourth proportional to 1,328,605,972.80, 1,992,908,959.20 and 1,320,953,222.40 is: 1,981,429,833.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,605,972.80 : 1,992,908,959.20 = 1,320,953,222.40 : x
  2. Step 2: Convert to fraction form
    1,328,605,972.80/1,992,908,959.20 = 1,320,953,222.40/x
  3. Step 3: Cross multiply
    1,328,605,972.80x = 1,992,908,959.20 × 1,320,953,222.40
  4. Step 4: Simplify right side
    1,328,605,972.80x = 2,632,539,511,605,070,336
  5. Step 5: Solve for x
    x = 2,632,539,511,605,070,336/1,328,605,972.80
  6. Step 6: Final answer
    x = 1,981,429,833.60

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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.