Home / 1,986,364.20-2,985,767.10-1,949,039.40

Finding the Fourth Proportional to 1,986,364.20, 2,985,767.10 and 1,949,039.40

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Solution

The fourth proportional to 1,986,364.20, 2,985,767.10 and 1,949,039.40 is: 2,929,663.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,364.20 : 2,985,767.10 = 1,949,039.40 : x
  2. Step 2: Convert to fraction form
    1,986,364.20/2,985,767.10 = 1,949,039.40/x
  3. Step 3: Cross multiply
    1,986,364.20x = 2,985,767.10 × 1,949,039.40
  4. Step 4: Simplify right side
    1,986,364.20x = 5,819,377,717,123.74
  5. Step 5: Solve for x
    x = 5,819,377,717,123.74/1,986,364.20
  6. Step 6: Final answer
    x = 2,929,663.01

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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.