Home / 457,916,339.32-631,867,135.98-309,560,264.44

Finding the Fourth Proportional to 457,916,339.32, 631,867,135.98 and 309,560,264.44

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Solution

The fourth proportional to 457,916,339.32, 631,867,135.98 and 309,560,264.44 is: 427,154,353.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,916,339.32 : 631,867,135.98 = 309,560,264.44 : x
  2. Step 2: Convert to fraction form
    457,916,339.32/631,867,135.98 = 309,560,264.44/x
  3. Step 3: Cross multiply
    457,916,339.32x = 631,867,135.98 × 309,560,264.44
  4. Step 4: Simplify right side
    457,916,339.32x = 195,600,957,704,914,240
  5. Step 5: Solve for x
    x = 195,600,957,704,914,240/457,916,339.32
  6. Step 6: Final answer
    x = 427,154,353.12

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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.