Home / 18,079,871.69-27,119,807.54-7,980,480.65

Finding the Fourth Proportional to 18,079,871.69, 27,119,807.54 and 7,980,480.65

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Solution

The fourth proportional to 18,079,871.69, 27,119,807.54 and 7,980,480.65 is: 11,970,720.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,079,871.69 : 27,119,807.54 = 7,980,480.65 : x
  2. Step 2: Convert to fraction form
    18,079,871.69/27,119,807.54 = 7,980,480.65/x
  3. Step 3: Cross multiply
    18,079,871.69x = 27,119,807.54 × 7,980,480.65
  4. Step 4: Simplify right side
    18,079,871.69x = 216,429,099,362,518.03
  5. Step 5: Solve for x
    x = 216,429,099,362,518.03/18,079,871.69
  6. Step 6: Final answer
    x = 11,970,720.98

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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.