Home / 21,372,738.80-32,080,103.40-10,602,201.20

Finding the Fourth Proportional to 21,372,738.80, 32,080,103.40 and 10,602,201.20

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Solution

The fourth proportional to 21,372,738.80, 32,080,103.40 and 10,602,201.20 is: 15,913,716.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,372,738.80 : 32,080,103.40 = 10,602,201.20 : x
  2. Step 2: Convert to fraction form
    21,372,738.80/32,080,103.40 = 10,602,201.20/x
  3. Step 3: Cross multiply
    21,372,738.80x = 32,080,103.40 × 10,602,201.20
  4. Step 4: Simplify right side
    21,372,738.80x = 340,119,710,763,604.06
  5. Step 5: Solve for x
    x = 340,119,710,763,604.06/21,372,738.80
  6. Step 6: Final answer
    x = 15,913,716.72

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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.