Home / 2,148,156.45-2,963,730.33-1,217,764.40

Finding the Fourth Proportional to 2,148,156.45, 2,963,730.33 and 1,217,764.40

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Solution

The fourth proportional to 2,148,156.45, 2,963,730.33 and 1,217,764.40 is: 1,680,103.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148,156.45 : 2,963,730.33 = 1,217,764.40 : x
  2. Step 2: Convert to fraction form
    2,148,156.45/2,963,730.33 = 1,217,764.40/x
  3. Step 3: Cross multiply
    2,148,156.45x = 2,963,730.33 × 1,217,764.40
  4. Step 4: Simplify right side
    2,148,156.45x = 3,609,125,272,255.60
  5. Step 5: Solve for x
    x = 3,609,125,272,255.60/2,148,156.45
  6. Step 6: Final answer
    x = 1,680,103.55

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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.