Home / 566,916,985.21-782,345,433.09-306,156,601.21

Finding the Fourth Proportional to 566,916,985.21, 782,345,433.09 and 306,156,601.21

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Solution

The fourth proportional to 566,916,985.21, 782,345,433.09 and 306,156,601.21 is: 422,496,106.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,916,985.21 : 782,345,433.09 = 306,156,601.21 : x
  2. Step 2: Convert to fraction form
    566,916,985.21/782,345,433.09 = 306,156,601.21/x
  3. Step 3: Cross multiply
    566,916,985.21x = 782,345,433.09 × 306,156,601.21
  4. Step 4: Simplify right side
    566,916,985.21x = 239,520,218,766,999,872
  5. Step 5: Solve for x
    x = 239,520,218,766,999,872/566,916,985.21
  6. Step 6: Final answer
    x = 422,496,106.16

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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.