Home / 260,802,813.30-391,204,219.95-256,976,438.10

Finding the Fourth Proportional to 260,802,813.30, 391,204,219.95 and 256,976,438.10

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Solution

The fourth proportional to 260,802,813.30, 391,204,219.95 and 256,976,438.10 is: 385,464,657.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,802,813.30 : 391,204,219.95 = 256,976,438.10 : x
  2. Step 2: Convert to fraction form
    260,802,813.30/391,204,219.95 = 256,976,438.10/x
  3. Step 3: Cross multiply
    260,802,813.30x = 391,204,219.95 × 256,976,438.10
  4. Step 4: Simplify right side
    260,802,813.30x = 100,530,267,012,439,952
  5. Step 5: Solve for x
    x = 100,530,267,012,439,952/260,802,813.30
  6. Step 6: Final answer
    x = 385,464,657.15

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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.