Home / 3,918,972.80-5,408,772.72-2,391,967.28

Finding the Fourth Proportional to 3,918,972.80, 5,408,772.72 and 2,391,967.28

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Solution

The fourth proportional to 3,918,972.80, 5,408,772.72 and 2,391,967.28 is: 3,301,275.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918,972.80 : 5,408,772.72 = 2,391,967.28 : x
  2. Step 2: Convert to fraction form
    3,918,972.80/5,408,772.72 = 2,391,967.28/x
  3. Step 3: Cross multiply
    3,918,972.80x = 5,408,772.72 × 2,391,967.28
  4. Step 4: Simplify right side
    3,918,972.80x = 12,937,607,371,196.60
  5. Step 5: Solve for x
    x = 12,937,607,371,196.60/3,918,972.80
  6. Step 6: Final answer
    x = 3,301,275.11

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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.