Home / 1,219,147,231.20-1,682,421,898.72-662,230,713.84

Finding the Fourth Proportional to 1,219,147,231.20, 1,682,421,898.72 and 662,230,713.84

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Solution

The fourth proportional to 1,219,147,231.20, 1,682,421,898.72 and 662,230,713.84 is: 913,877,689.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,147,231.20 : 1,682,421,898.72 = 662,230,713.84 : x
  2. Step 2: Convert to fraction form
    1,219,147,231.20/1,682,421,898.72 = 662,230,713.84/x
  3. Step 3: Cross multiply
    1,219,147,231.20x = 1,682,421,898.72 × 662,230,713.84
  4. Step 4: Simplify right side
    1,219,147,231.20x = 1,114,151,454,969,393,920
  5. Step 5: Solve for x
    x = 1,114,151,454,969,393,920/1,219,147,231.20
  6. Step 6: Final answer
    x = 913,877,689.63

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Double scale
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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.