Home / 3,988,006.80-5,977,927.80-1,963,136.40

Finding the Fourth Proportional to 3,988,006.80, 5,977,927.80 and 1,963,136.40

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Solution

The fourth proportional to 3,988,006.80, 5,977,927.80 and 1,963,136.40 is: 2,942,695.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988,006.80 : 5,977,927.80 = 1,963,136.40 : x
  2. Step 2: Convert to fraction form
    3,988,006.80/5,977,927.80 = 1,963,136.40/x
  3. Step 3: Cross multiply
    3,988,006.80x = 5,977,927.80 × 1,963,136.40
  4. Step 4: Simplify right side
    3,988,006.80x = 11,735,487,660,751.92
  5. Step 5: Solve for x
    x = 11,735,487,660,751.92/3,988,006.80
  6. Step 6: Final answer
    x = 2,942,695.00

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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.