Home / 31,355,564.52-47,015,037.54-12,163,894.32

Finding the Fourth Proportional to 31,355,564.52, 47,015,037.54 and 12,163,894.32

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Solution

The fourth proportional to 31,355,564.52, 47,015,037.54 and 12,163,894.32 is: 18,238,738.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,355,564.52 : 47,015,037.54 = 12,163,894.32 : x
  2. Step 2: Convert to fraction form
    31,355,564.52/47,015,037.54 = 12,163,894.32/x
  3. Step 3: Cross multiply
    31,355,564.52x = 47,015,037.54 × 12,163,894.32
  4. Step 4: Simplify right side
    31,355,564.52x = 571,885,948,087,392.75
  5. Step 5: Solve for x
    x = 571,885,948,087,392.75/31,355,564.52
  6. Step 6: Final answer
    x = 18,238,738.70

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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.