Home / 2,642,116.80-3,963,175.20-1,645,406.40

Finding the Fourth Proportional to 2,642,116.80, 3,963,175.20 and 1,645,406.40

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Solution

The fourth proportional to 2,642,116.80, 3,963,175.20 and 1,645,406.40 is: 2,468,109.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642,116.80 : 3,963,175.20 = 1,645,406.40 : x
  2. Step 2: Convert to fraction form
    2,642,116.80/3,963,175.20 = 1,645,406.40/x
  3. Step 3: Cross multiply
    2,642,116.80x = 3,963,175.20 × 1,645,406.40
  4. Step 4: Simplify right side
    2,642,116.80x = 6,521,033,838,401.28
  5. Step 5: Solve for x
    x = 6,521,033,838,401.28/2,642,116.80
  6. Step 6: Final answer
    x = 2,468,109.60

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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.