Home / 520,588,411.58-718,425,226.24-285,639,009.82

Finding the Fourth Proportional to 520,588,411.58, 718,425,226.24 and 285,639,009.82

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Solution

The fourth proportional to 520,588,411.58, 718,425,226.24 and 285,639,009.82 is: 394,189,086.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,588,411.58 : 718,425,226.24 = 285,639,009.82 : x
  2. Step 2: Convert to fraction form
    520,588,411.58/718,425,226.24 = 285,639,009.82/x
  3. Step 3: Cross multiply
    520,588,411.58x = 718,425,226.24 × 285,639,009.82
  4. Step 4: Simplify right side
    520,588,411.58x = 205,210,270,250,392,896
  5. Step 5: Solve for x
    x = 205,210,270,250,392,896/520,588,411.58
  6. Step 6: Final answer
    x = 394,189,086.20

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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.