Home / 821,669,306.40-1,133,917,344-445,337,913.60

Finding the Fourth Proportional to 821,669,306.40, 1,133,917,344 and 445,337,913.60

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Solution

The fourth proportional to 821,669,306.40, 1,133,917,344 and 445,337,913.60 is: 614,573,746.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,669,306.40 : 1,133,917,344 = 445,337,913.60 : x
  2. Step 2: Convert to fraction form
    821,669,306.40/1,133,917,344 = 445,337,913.60/x
  3. Step 3: Cross multiply
    821,669,306.40x = 1,133,917,344 × 445,337,913.60
  4. Step 4: Simplify right side
    821,669,306.40x = 504,976,384,171,813,504
  5. Step 5: Solve for x
    x = 504,976,384,171,813,504/821,669,306.40
  6. Step 6: Final answer
    x = 614,573,746.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.