Home / 520,072,907.60-717,700,439.32-285,118,523.40

Finding the Fourth Proportional to 520,072,907.60, 717,700,439.32 and 285,118,523.40

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Solution

The fourth proportional to 520,072,907.60, 717,700,439.32 and 285,118,523.40 is: 393,463,467.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,072,907.60 : 717,700,439.32 = 285,118,523.40 : x
  2. Step 2: Convert to fraction form
    520,072,907.60/717,700,439.32 = 285,118,523.40/x
  3. Step 3: Cross multiply
    520,072,907.60x = 717,700,439.32 × 285,118,523.40
  4. Step 4: Simplify right side
    520,072,907.60x = 204,629,689,502,449,696
  5. Step 5: Solve for x
    x = 204,629,689,502,449,696/520,072,907.60
  6. Step 6: Final answer
    x = 393,463,467.36

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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.