Home / 585,079,989.21-807,410,190.24-320,756,313.83

Finding the Fourth Proportional to 585,079,989.21, 807,410,190.24 and 320,756,313.83

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Solution

The fourth proportional to 585,079,989.21, 807,410,190.24 and 320,756,313.83 is: 442,643,606.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,079,989.21 : 807,410,190.24 = 320,756,313.83 : x
  2. Step 2: Convert to fraction form
    585,079,989.21/807,410,190.24 = 320,756,313.83/x
  3. Step 3: Cross multiply
    585,079,989.21x = 807,410,190.24 × 320,756,313.83
  4. Step 4: Simplify right side
    585,079,989.21x = 258,981,916,366,124,384
  5. Step 5: Solve for x
    x = 258,981,916,366,124,384/585,079,989.21
  6. Step 6: Final answer
    x = 442,643,606.25

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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.