Home / 2,186,865.20-3,017,875.28-1,219,995.50

Finding the Fourth Proportional to 2,186,865.20, 3,017,875.28 and 1,219,995.50

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Solution

The fourth proportional to 2,186,865.20, 3,017,875.28 and 1,219,995.50 is: 1,683,594.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186,865.20 : 3,017,875.28 = 1,219,995.50 : x
  2. Step 2: Convert to fraction form
    2,186,865.20/3,017,875.28 = 1,219,995.50/x
  3. Step 3: Cross multiply
    2,186,865.20x = 3,017,875.28 × 1,219,995.50
  4. Step 4: Simplify right side
    2,186,865.20x = 3,681,794,249,121.85
  5. Step 5: Solve for x
    x = 3,681,794,249,121.85/2,186,865.20
  6. Step 6: Final answer
    x = 1,683,594.51

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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.