Home / 1,221,257,111.79-1,832,660,481.59-521,754,517.80

Finding the Fourth Proportional to 1,221,257,111.79, 1,832,660,481.59 and 521,754,517.80

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Solution

The fourth proportional to 1,221,257,111.79, 1,832,660,481.59 and 521,754,517.80 is: 782,962,798.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,257,111.79 : 1,832,660,481.59 = 521,754,517.80 : x
  2. Step 2: Convert to fraction form
    1,221,257,111.79/1,832,660,481.59 = 521,754,517.80/x
  3. Step 3: Cross multiply
    1,221,257,111.79x = 1,832,660,481.59 × 521,754,517.80
  4. Step 4: Simplify right side
    1,221,257,111.79x = 956,198,885,863,106,176
  5. Step 5: Solve for x
    x = 956,198,885,863,106,176/1,221,257,111.79
  6. Step 6: Final answer
    x = 782,962,798.44

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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.