Home / 5,429,287.39-8,142,122.68-2,189,988.45

Finding the Fourth Proportional to 5,429,287.39, 8,142,122.68 and 2,189,988.45

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Solution

The fourth proportional to 5,429,287.39, 8,142,122.68 and 2,189,988.45 is: 3,284,253.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429,287.39 : 8,142,122.68 = 2,189,988.45 : x
  2. Step 2: Convert to fraction form
    5,429,287.39/8,142,122.68 = 2,189,988.45/x
  3. Step 3: Cross multiply
    5,429,287.39x = 8,142,122.68 × 2,189,988.45
  4. Step 4: Simplify right side
    5,429,287.39x = 17,831,154,627,683.05
  5. Step 5: Solve for x
    x = 17,831,154,627,683.05/5,429,287.39
  6. Step 6: Final answer
    x = 3,284,253.23

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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.