Home / 7,118,976.42-9,824,127.93-3,855,715.38

Finding the Fourth Proportional to 7,118,976.42, 9,824,127.93 and 3,855,715.38

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Solution

The fourth proportional to 7,118,976.42, 9,824,127.93 and 3,855,715.38 is: 5,320,854.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,118,976.42 : 9,824,127.93 = 3,855,715.38 : x
  2. Step 2: Convert to fraction form
    7,118,976.42/9,824,127.93 = 3,855,715.38/x
  3. Step 3: Cross multiply
    7,118,976.42x = 9,824,127.93 × 3,855,715.38
  4. Step 4: Simplify right side
    7,118,976.42x = 37,879,041,154,788.56
  5. Step 5: Solve for x
    x = 37,879,041,154,788.56/7,118,976.42
  6. Step 6: Final answer
    x = 5,320,854.98

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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.