Home / 5,429,281.47-8,142,113.79-2,189,982.49

Finding the Fourth Proportional to 5,429,281.47, 8,142,113.79 and 2,189,982.49

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Solution

The fourth proportional to 5,429,281.47, 8,142,113.79 and 2,189,982.49 is: 3,284,244.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429,281.47 : 8,142,113.79 = 2,189,982.49 : x
  2. Step 2: Convert to fraction form
    5,429,281.47/8,142,113.79 = 2,189,982.49/x
  3. Step 3: Cross multiply
    5,429,281.47x = 8,142,113.79 × 2,189,982.49
  4. Step 4: Simplify right side
    5,429,281.47x = 17,831,086,611,332.25
  5. Step 5: Solve for x
    x = 17,831,086,611,332.25/5,429,281.47
  6. Step 6: Final answer
    x = 3,284,244.28

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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.