Home / 2,124,203.87-3,186,308.82-1,621,618.40

Finding the Fourth Proportional to 2,124,203.87, 3,186,308.82 and 1,621,618.40

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Solution

The fourth proportional to 2,124,203.87, 3,186,308.82 and 1,621,618.40 is: 2,432,429.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124,203.87 : 3,186,308.82 = 1,621,618.40 : x
  2. Step 2: Convert to fraction form
    2,124,203.87/3,186,308.82 = 1,621,618.40/x
  3. Step 3: Cross multiply
    2,124,203.87x = 3,186,308.82 × 1,621,618.40
  4. Step 4: Simplify right side
    2,124,203.87x = 5,166,977,024,641.13
  5. Step 5: Solve for x
    x = 5,166,977,024,641.13/2,124,203.87
  6. Step 6: Final answer
    x = 2,432,429.91

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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.