Home / 1,370,336,348.99-1,891,015,231.32-775,608,063.88

Finding the Fourth Proportional to 1,370,336,348.99, 1,891,015,231.32 and 775,608,063.88

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Solution

The fourth proportional to 1,370,336,348.99, 1,891,015,231.32 and 775,608,063.88 is: 1,070,311,433.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370,336,348.99 : 1,891,015,231.32 = 775,608,063.88 : x
  2. Step 2: Convert to fraction form
    1,370,336,348.99/1,891,015,231.32 = 775,608,063.88/x
  3. Step 3: Cross multiply
    1,370,336,348.99x = 1,891,015,231.32 × 775,608,063.88
  4. Step 4: Simplify right side
    1,370,336,348.99x = 1,466,686,662,331,695,360
  5. Step 5: Solve for x
    x = 1,466,686,662,331,695,360/1,370,336,348.99
  6. Step 6: Final answer
    x = 1,070,311,433.69

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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.