Home / 2,688,090.80-4,032,136.20-2,669,428.40

Finding the Fourth Proportional to 2,688,090.80, 4,032,136.20 and 2,669,428.40

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Solution

The fourth proportional to 2,688,090.80, 4,032,136.20 and 2,669,428.40 is: 4,004,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688,090.80 : 4,032,136.20 = 2,669,428.40 : x
  2. Step 2: Convert to fraction form
    2,688,090.80/4,032,136.20 = 2,669,428.40/x
  3. Step 3: Cross multiply
    2,688,090.80x = 4,032,136.20 × 2,669,428.40
  4. Step 4: Simplify right side
    2,688,090.80x = 10,763,498,884,948.08
  5. Step 5: Solve for x
    x = 10,763,498,884,948.08/2,688,090.80
  6. Step 6: Final answer
    x = 4,004,142.60

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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.