Home / 842,919,661.78-1,263,943,834.07-370,025,154.79

Finding the Fourth Proportional to 842,919,661.78, 1,263,943,834.07 and 370,025,154.79

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Solution

The fourth proportional to 842,919,661.78, 1,263,943,834.07 and 370,025,154.79 is: 554,846,486.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,919,661.78 : 1,263,943,834.07 = 370,025,154.79 : x
  2. Step 2: Convert to fraction form
    842,919,661.78/1,263,943,834.07 = 370,025,154.79/x
  3. Step 3: Cross multiply
    842,919,661.78x = 1,263,943,834.07 × 370,025,154.79
  4. Step 4: Simplify right side
    842,919,661.78x = 467,691,012,842,607,872
  5. Step 5: Solve for x
    x = 467,691,012,842,607,872/842,919,661.78
  6. Step 6: Final answer
    x = 554,846,486.62

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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.