Home / 12,421,640.40-18,632,460.60-3,901,963.20

Finding the Fourth Proportional to 12,421,640.40, 18,632,460.60 and 3,901,963.20

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Solution

The fourth proportional to 12,421,640.40, 18,632,460.60 and 3,901,963.20 is: 5,852,944.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,421,640.40 : 18,632,460.60 = 3,901,963.20 : x
  2. Step 2: Convert to fraction form
    12,421,640.40/18,632,460.60 = 3,901,963.20/x
  3. Step 3: Cross multiply
    12,421,640.40x = 18,632,460.60 × 3,901,963.20
  4. Step 4: Simplify right side
    12,421,640.40x = 72,703,175,586,649.92
  5. Step 5: Solve for x
    x = 72,703,175,586,649.92/12,421,640.40
  6. Step 6: Final answer
    x = 5,852,944.80

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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.