Home / 2,112,663.20-3,168,994.80-1,316,400.80

Finding the Fourth Proportional to 2,112,663.20, 3,168,994.80 and 1,316,400.80

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Solution

The fourth proportional to 2,112,663.20, 3,168,994.80 and 1,316,400.80 is: 1,974,601.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,112,663.20 : 3,168,994.80 = 1,316,400.80 : x
  2. Step 2: Convert to fraction form
    2,112,663.20/3,168,994.80 = 1,316,400.80/x
  3. Step 3: Cross multiply
    2,112,663.20x = 3,168,994.80 × 1,316,400.80
  4. Step 4: Simplify right side
    2,112,663.20x = 4,171,667,289,915.84
  5. Step 5: Solve for x
    x = 4,171,667,289,915.84/2,112,663.20
  6. Step 6: Final answer
    x = 1,974,601.20

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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.