Home / 3,968,020.52-5,475,907.20-2,157,223.40

Finding the Fourth Proportional to 3,968,020.52, 5,475,907.20 and 2,157,223.40

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Solution

The fourth proportional to 3,968,020.52, 5,475,907.20 and 2,157,223.40 is: 2,976,989.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968,020.52 : 5,475,907.20 = 2,157,223.40 : x
  2. Step 2: Convert to fraction form
    3,968,020.52/5,475,907.20 = 2,157,223.40/x
  3. Step 3: Cross multiply
    3,968,020.52x = 5,475,907.20 × 2,157,223.40
  4. Step 4: Simplify right side
    3,968,020.52x = 11,812,755,148,068.48
  5. Step 5: Solve for x
    x = 11,812,755,148,068.48/3,968,020.52
  6. Step 6: Final answer
    x = 2,976,989.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.