Home / 806,786,621.68-1,113,336,144.48-449,535,939.82

Finding the Fourth Proportional to 806,786,621.68, 1,113,336,144.48 and 449,535,939.82

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Solution

The fourth proportional to 806,786,621.68, 1,113,336,144.48 and 449,535,939.82 is: 620,343,219.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,786,621.68 : 1,113,336,144.48 = 449,535,939.82 : x
  2. Step 2: Convert to fraction form
    806,786,621.68/1,113,336,144.48 = 449,535,939.82/x
  3. Step 3: Cross multiply
    806,786,621.68x = 1,113,336,144.48 × 449,535,939.82
  4. Step 4: Simplify right side
    806,786,621.68x = 500,484,610,044,392,128
  5. Step 5: Solve for x
    x = 500,484,610,044,392,128/806,786,621.68
  6. Step 6: Final answer
    x = 620,343,219.13

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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.