Home / 1,218,633,551.78-1,826,674,523.57-509,988,131.55

Finding the Fourth Proportional to 1,218,633,551.78, 1,826,674,523.57 and 509,988,131.55

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Solution

The fourth proportional to 1,218,633,551.78, 1,826,674,523.57 and 509,988,131.55 is: 764,448,283.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,633,551.78 : 1,826,674,523.57 = 509,988,131.55 : x
  2. Step 2: Convert to fraction form
    1,218,633,551.78/1,826,674,523.57 = 509,988,131.55/x
  3. Step 3: Cross multiply
    1,218,633,551.78x = 1,826,674,523.57 × 509,988,131.55
  4. Step 4: Simplify right side
    1,218,633,551.78x = 931,582,327,227,467,520
  5. Step 5: Solve for x
    x = 931,582,327,227,467,520/1,218,633,551.78
  6. Step 6: Final answer
    x = 764,448,283.79

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Double scale
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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.