Home / 520,646,662.56-718,490,405.88-285,701,250.72

Finding the Fourth Proportional to 520,646,662.56, 718,490,405.88 and 285,701,250.72

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Solution

The fourth proportional to 520,646,662.56, 718,490,405.88 and 285,701,250.72 is: 394,266,634.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,646,662.56 : 718,490,405.88 = 285,701,250.72 : x
  2. Step 2: Convert to fraction form
    520,646,662.56/718,490,405.88 = 285,701,250.72/x
  3. Step 3: Cross multiply
    520,646,662.56x = 718,490,405.88 × 285,701,250.72
  4. Step 4: Simplify right side
    520,646,662.56x = 205,273,607,590,236,448
  5. Step 5: Solve for x
    x = 205,273,607,590,236,448/520,646,662.56
  6. Step 6: Final answer
    x = 394,266,634.84

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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.