Home / 12,112,671.50-18,172,943.85-8,085,529.70

Finding the Fourth Proportional to 12,112,671.50, 18,172,943.85 and 8,085,529.70

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Solution

The fourth proportional to 12,112,671.50, 18,172,943.85 and 8,085,529.70 is: 12,130,922.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,112,671.50 : 18,172,943.85 = 8,085,529.70 : x
  2. Step 2: Convert to fraction form
    12,112,671.50/18,172,943.85 = 8,085,529.70/x
  3. Step 3: Cross multiply
    12,112,671.50x = 18,172,943.85 × 8,085,529.70
  4. Step 4: Simplify right side
    12,112,671.50x = 146,937,877,235,607.38
  5. Step 5: Solve for x
    x = 146,937,877,235,607.38/12,112,671.50
  6. Step 6: Final answer
    x = 12,130,922.33

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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.