Home / 7,178,022.72-10,757,416.40-6,718,338.55

Finding the Fourth Proportional to 7,178,022.72, 10,757,416.40 and 6,718,338.55

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Solution

The fourth proportional to 7,178,022.72, 10,757,416.40 and 6,718,338.55 is: 10,068,506.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178,022.72 : 10,757,416.40 = 6,718,338.55 : x
  2. Step 2: Convert to fraction form
    7,178,022.72/10,757,416.40 = 6,718,338.55/x
  3. Step 3: Cross multiply
    7,178,022.72x = 10,757,416.40 × 6,718,338.55
  4. Step 4: Simplify right side
    7,178,022.72x = 72,271,965,238,036.98
  5. Step 5: Solve for x
    x = 72,271,965,238,036.98/7,178,022.72
  6. Step 6: Final answer
    x = 10,068,506.06

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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.