Home / 1,218,633,552.78-1,826,674,525.06-509,988,132.55

Finding the Fourth Proportional to 1,218,633,552.78, 1,826,674,525.06 and 509,988,132.55

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Solution

The fourth proportional to 1,218,633,552.78, 1,826,674,525.06 and 509,988,132.55 is: 764,448,285.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,633,552.78 : 1,826,674,525.06 = 509,988,132.55 : x
  2. Step 2: Convert to fraction form
    1,218,633,552.78/1,826,674,525.06 = 509,988,132.55/x
  3. Step 3: Cross multiply
    1,218,633,552.78x = 1,826,674,525.06 × 509,988,132.55
  4. Step 4: Simplify right side
    1,218,633,552.78x = 931,582,329,812,007,552
  5. Step 5: Solve for x
    x = 931,582,329,812,007,552/1,218,633,552.78
  6. Step 6: Final answer
    x = 764,448,285.28

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Double scale
Find fourth proportional to 1,218,633,553.78, 1,826,674,526.56 and 509,988,133.55
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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.