Home / 40,520,970.62-55,918,956.72-21,936,110.25

Finding the Fourth Proportional to 40,520,970.62, 55,918,956.72 and 21,936,110.25

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Solution

The fourth proportional to 40,520,970.62, 55,918,956.72 and 21,936,110.25 is: 30,271,841.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,520,970.62 : 55,918,956.72 = 21,936,110.25 : x
  2. Step 2: Convert to fraction form
    40,520,970.62/55,918,956.72 = 21,936,110.25/x
  3. Step 3: Cross multiply
    40,520,970.62x = 55,918,956.72 × 21,936,110.25
  4. Step 4: Simplify right side
    40,520,970.62x = 1,226,644,399,395,303.75
  5. Step 5: Solve for x
    x = 1,226,644,399,395,303.75/40,520,970.62
  6. Step 6: Final answer
    x = 30,271,841.49

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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.