Home / 3,872,106.40-5,808,159.60-2,802,128.80

Finding the Fourth Proportional to 3,872,106.40, 5,808,159.60 and 2,802,128.80

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Solution

The fourth proportional to 3,872,106.40, 5,808,159.60 and 2,802,128.80 is: 4,203,193.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872,106.40 : 5,808,159.60 = 2,802,128.80 : x
  2. Step 2: Convert to fraction form
    3,872,106.40/5,808,159.60 = 2,802,128.80/x
  3. Step 3: Cross multiply
    3,872,106.40x = 5,808,159.60 × 2,802,128.80
  4. Step 4: Simplify right side
    3,872,106.40x = 16,275,211,290,156.48
  5. Step 5: Solve for x
    x = 16,275,211,290,156.48/3,872,106.40
  6. Step 6: Final answer
    x = 4,203,193.20

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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.