Home / 820,306,040,486.40-1,229,479,508,678.40-342,774,415,526.40

Finding the Fourth Proportional to 820,306,040,486.40, 1,229,479,508,678.40 and 342,774,415,526.40

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Solution

The fourth proportional to 820,306,040,486.40, 1,229,479,508,678.40 and 342,774,415,526.40 is: 513,752,306,077.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,306,040,486.40 : 1,229,479,508,678.40 = 342,774,415,526.40 : x
  2. Step 2: Convert to fraction form
    820,306,040,486.40/1,229,479,508,678.40 = 342,774,415,526.40/x
  3. Step 3: Cross multiply
    820,306,040,486.40x = 1,229,479,508,678.40 × 342,774,415,526.40
  4. Step 4: Simplify right side
    820,306,040,486.40x = 421,434,119,988,923,988,967,424
  5. Step 5: Solve for x
    x = 421,434,119,988,923,988,967,424/820,306,040,486.40
  6. Step 6: Final answer
    x = 513,752,306,077.17

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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.