Home / 18,750,005.19-28,068,972.49-11,341,632.81

Finding the Fourth Proportional to 18,750,005.19, 28,068,972.49 and 11,341,632.81

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Solution

The fourth proportional to 18,750,005.19, 28,068,972.49 and 11,341,632.81 is: 16,978,554.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,750,005.19 : 28,068,972.49 = 11,341,632.81 : x
  2. Step 2: Convert to fraction form
    18,750,005.19/28,068,972.49 = 11,341,632.81/x
  3. Step 3: Cross multiply
    18,750,005.19x = 28,068,972.49 × 11,341,632.81
  4. Step 4: Simplify right side
    18,750,005.19x = 318,347,979,335,571.38
  5. Step 5: Solve for x
    x = 318,347,979,335,571.38/18,750,005.19
  6. Step 6: Final answer
    x = 16,978,554.20

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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.