Home / 2,176,208.78-3,003,108.21-1,209,314.21

Finding the Fourth Proportional to 2,176,208.78, 3,003,108.21 and 1,209,314.21

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Solution

The fourth proportional to 2,176,208.78, 3,003,108.21 and 1,209,314.21 is: 1,668,820.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176,208.78 : 3,003,108.21 = 1,209,314.21 : x
  2. Step 2: Convert to fraction form
    2,176,208.78/3,003,108.21 = 1,209,314.21/x
  3. Step 3: Cross multiply
    2,176,208.78x = 3,003,108.21 × 1,209,314.21
  4. Step 4: Simplify right side
    2,176,208.78x = 3,631,701,417,505.12
  5. Step 5: Solve for x
    x = 3,631,701,417,505.12/2,176,208.78
  6. Step 6: Final answer
    x = 1,668,820.32

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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.