Home / 14,085,965.80-21,128,948.70-3,988,586.80

Finding the Fourth Proportional to 14,085,965.80, 21,128,948.70 and 3,988,586.80

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Solution

The fourth proportional to 14,085,965.80, 21,128,948.70 and 3,988,586.80 is: 5,982,880.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,085,965.80 : 21,128,948.70 = 3,988,586.80 : x
  2. Step 2: Convert to fraction form
    14,085,965.80/21,128,948.70 = 3,988,586.80/x
  3. Step 3: Cross multiply
    14,085,965.80x = 21,128,948.70 × 3,988,586.80
  4. Step 4: Simplify right side
    14,085,965.80x = 84,274,645,882,697.16
  5. Step 5: Solve for x
    x = 84,274,645,882,697.16/14,085,965.80
  6. Step 6: Final answer
    x = 5,982,880.20

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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.