Home / 28,645,475.68-42,967,790.64-7,080,079.84

Finding the Fourth Proportional to 28,645,475.68, 42,967,790.64 and 7,080,079.84

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Solution

The fourth proportional to 28,645,475.68, 42,967,790.64 and 7,080,079.84 is: 10,620,015.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,645,475.68 : 42,967,790.64 = 7,080,079.84 : x
  2. Step 2: Convert to fraction form
    28,645,475.68/42,967,790.64 = 7,080,079.84/x
  3. Step 3: Cross multiply
    28,645,475.68x = 42,967,790.64 × 7,080,079.84
  4. Step 4: Simplify right side
    28,645,475.68x = 304,215,388,279,604.69
  5. Step 5: Solve for x
    x = 304,215,388,279,604.69/28,645,475.68
  6. Step 6: Final answer
    x = 10,620,015.24

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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.