Home / 20,072,362.80-27,699,712.92-10,905,080.88

Finding the Fourth Proportional to 20,072,362.80, 27,699,712.92 and 10,905,080.88

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Solution

The fourth proportional to 20,072,362.80, 27,699,712.92 and 10,905,080.88 is: 15,048,931.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,072,362.80 : 27,699,712.92 = 10,905,080.88 : x
  2. Step 2: Convert to fraction form
    20,072,362.80/27,699,712.92 = 10,905,080.88/x
  3. Step 3: Cross multiply
    20,072,362.80x = 27,699,712.92 × 10,905,080.88
  4. Step 4: Simplify right side
    20,072,362.80x = 302,067,609,745,381
  5. Step 5: Solve for x
    x = 302,067,609,745,381/20,072,362.80
  6. Step 6: Final answer
    x = 15,048,931.35

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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.