Home / 31,354,858.92-47,013,983.16-12,163,190.32

Finding the Fourth Proportional to 31,354,858.92, 47,013,983.16 and 12,163,190.32

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Solution

The fourth proportional to 31,354,858.92, 47,013,983.16 and 12,163,190.32 is: 18,237,684.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,354,858.92 : 47,013,983.16 = 12,163,190.32 : x
  2. Step 2: Convert to fraction form
    31,354,858.92/47,013,983.16 = 12,163,190.32/x
  3. Step 3: Cross multiply
    31,354,858.92x = 47,013,983.16 × 12,163,190.32
  4. Step 4: Simplify right side
    31,354,858.92x = 571,840,024,876,355
  5. Step 5: Solve for x
    x = 571,840,024,876,355/31,354,858.92
  6. Step 6: Final answer
    x = 18,237,684.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.