Home / 1,221,257,109.54-1,832,660,478.21-521,754,515.54

Finding the Fourth Proportional to 1,221,257,109.54, 1,832,660,478.21 and 521,754,515.54

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Solution

The fourth proportional to 1,221,257,109.54, 1,832,660,478.21 and 521,754,515.54 is: 782,962,795.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,257,109.54 : 1,832,660,478.21 = 521,754,515.54 : x
  2. Step 2: Convert to fraction form
    1,221,257,109.54/1,832,660,478.21 = 521,754,515.54/x
  3. Step 3: Cross multiply
    1,221,257,109.54x = 1,832,660,478.21 × 521,754,515.54
  4. Step 4: Simplify right side
    1,221,257,109.54x = 956,198,879,957,763,328
  5. Step 5: Solve for x
    x = 956,198,879,957,763,328/1,221,257,109.54
  6. Step 6: Final answer
    x = 782,962,795.05

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1.5x scale

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.