Home / 1,259,715,139.80-1,889,572,709.70-799,983,245.40

Finding the Fourth Proportional to 1,259,715,139.80, 1,889,572,709.70 and 799,983,245.40

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Solution

The fourth proportional to 1,259,715,139.80, 1,889,572,709.70 and 799,983,245.40 is: 1,199,974,868.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,715,139.80 : 1,889,572,709.70 = 799,983,245.40 : x
  2. Step 2: Convert to fraction form
    1,259,715,139.80/1,889,572,709.70 = 799,983,245.40/x
  3. Step 3: Cross multiply
    1,259,715,139.80x = 1,889,572,709.70 × 799,983,245.40
  4. Step 4: Simplify right side
    1,259,715,139.80x = 1,511,626,508,725,078,016
  5. Step 5: Solve for x
    x = 1,511,626,508,725,078,016/1,259,715,139.80
  6. Step 6: Final answer
    x = 1,199,974,868.10

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Double scale
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Similar ratio
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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.