Home / 520,072,874.24-717,700,393.22-285,118,490.12

Finding the Fourth Proportional to 520,072,874.24, 717,700,393.22 and 285,118,490.12

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Solution

The fourth proportional to 520,072,874.24, 717,700,393.22 and 285,118,490.12 is: 393,463,421.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,072,874.24 : 717,700,393.22 = 285,118,490.12 : x
  2. Step 2: Convert to fraction form
    520,072,874.24/717,700,393.22 = 285,118,490.12/x
  3. Step 3: Cross multiply
    520,072,874.24x = 717,700,393.22 × 285,118,490.12
  4. Step 4: Simplify right side
    520,072,874.24x = 204,629,652,468,402,592
  5. Step 5: Solve for x
    x = 204,629,652,468,402,592/520,072,874.24
  6. Step 6: Final answer
    x = 393,463,421.39

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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.