Home / 12,128,973.39-16,737,758.78-6,901,865.70

Finding the Fourth Proportional to 12,128,973.39, 16,737,758.78 and 6,901,865.70

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Solution

The fourth proportional to 12,128,973.39, 16,737,758.78 and 6,901,865.70 is: 9,524,446.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,128,973.39 : 16,737,758.78 = 6,901,865.70 : x
  2. Step 2: Convert to fraction form
    12,128,973.39/16,737,758.78 = 6,901,865.70/x
  3. Step 3: Cross multiply
    12,128,973.39x = 16,737,758.78 × 6,901,865.70
  4. Step 4: Simplify right side
    12,128,973.39x = 115,521,763,184,046.52
  5. Step 5: Solve for x
    x = 115,521,763,184,046.52/12,128,973.39
  6. Step 6: Final answer
    x = 9,524,446.91

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1.5x scale

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.