Home / 7,870,390.23-11,778,919.44-4,839,675.42

Finding the Fourth Proportional to 7,870,390.23, 11,778,919.44 and 4,839,675.42

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Solution

The fourth proportional to 7,870,390.23, 11,778,919.44 and 4,839,675.42 is: 7,243,115.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,870,390.23 : 11,778,919.44 = 4,839,675.42 : x
  2. Step 2: Convert to fraction form
    7,870,390.23/11,778,919.44 = 4,839,675.42/x
  3. Step 3: Cross multiply
    7,870,390.23x = 11,778,919.44 × 4,839,675.42
  4. Step 4: Simplify right side
    7,870,390.23x = 57,006,146,887,928.16
  5. Step 5: Solve for x
    x = 57,006,146,887,928.16/7,870,390.23
  6. Step 6: Final answer
    x = 7,243,115.68

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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.