Home / 866,060,550.40-1,296,539,908.80-815,609,084.80

Finding the Fourth Proportional to 866,060,550.40, 1,296,539,908.80 and 815,609,084.80

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Solution

The fourth proportional to 866,060,550.40, 1,296,539,908.80 and 815,609,084.80 is: 1,221,011,311.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,060,550.40 : 1,296,539,908.80 = 815,609,084.80 : x
  2. Step 2: Convert to fraction form
    866,060,550.40/1,296,539,908.80 = 815,609,084.80/x
  3. Step 3: Cross multiply
    866,060,550.40x = 1,296,539,908.80 × 815,609,084.80
  4. Step 4: Simplify right side
    866,060,550.40x = 1,057,469,728,423,043,328
  5. Step 5: Solve for x
    x = 1,057,469,728,423,043,328/866,060,550.40
  6. Step 6: Final answer
    x = 1,221,011,311.43

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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.