Home / 809,511,920.84-1,117,126,824.52-438,233,952.22

Finding the Fourth Proportional to 809,511,920.84, 1,117,126,824.52 and 438,233,952.22

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Solution

The fourth proportional to 809,511,920.84, 1,117,126,824.52 and 438,233,952.22 is: 604,763,056.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,511,920.84 : 1,117,126,824.52 = 438,233,952.22 : x
  2. Step 2: Convert to fraction form
    809,511,920.84/1,117,126,824.52 = 438,233,952.22/x
  3. Step 3: Cross multiply
    809,511,920.84x = 1,117,126,824.52 × 438,233,952.22
  4. Step 4: Simplify right side
    809,511,920.84x = 489,562,903,434,792,320
  5. Step 5: Solve for x
    x = 489,562,903,434,792,320/809,511,920.84
  6. Step 6: Final answer
    x = 604,763,056.39

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Double scale
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1.5x scale

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.