Home / 820,306,039,908.40-1,229,479,507,811.40-342,774,414,948.40

Finding the Fourth Proportional to 820,306,039,908.40, 1,229,479,507,811.40 and 342,774,414,948.40

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Solution

The fourth proportional to 820,306,039,908.40, 1,229,479,507,811.40 and 342,774,414,948.40 is: 513,752,305,210.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,306,039,908.40 : 1,229,479,507,811.40 = 342,774,414,948.40 : x
  2. Step 2: Convert to fraction form
    820,306,039,908.40/1,229,479,507,811.40 = 342,774,414,948.40/x
  3. Step 3: Cross multiply
    820,306,039,908.40x = 1,229,479,507,811.40 × 342,774,414,948.40
  4. Step 4: Simplify right side
    820,306,039,908.40x = 421,434,118,981,099,443,978,240
  5. Step 5: Solve for x
    x = 421,434,118,981,099,443,978,240/820,306,039,908.40
  6. Step 6: Final answer
    x = 513,752,305,210.58

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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.