Home / 12,120,700.80-18,176,750.40-5,377,046.40

Finding the Fourth Proportional to 12,120,700.80, 18,176,750.40 and 5,377,046.40

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Solution

The fourth proportional to 12,120,700.80, 18,176,750.40 and 5,377,046.40 is: 8,063,661.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,120,700.80 : 18,176,750.40 = 5,377,046.40 : x
  2. Step 2: Convert to fraction form
    12,120,700.80/18,176,750.40 = 5,377,046.40/x
  3. Step 3: Cross multiply
    12,120,700.80x = 18,176,750.40 × 5,377,046.40
  4. Step 4: Simplify right side
    12,120,700.80x = 97,737,230,302,018.56
  5. Step 5: Solve for x
    x = 97,737,230,302,018.56/12,120,700.80
  6. Step 6: Final answer
    x = 8,063,661.66

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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.