Home / 18,723,036.70-28,084,555.05-16,931,446.30

Finding the Fourth Proportional to 18,723,036.70, 28,084,555.05 and 16,931,446.30

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Solution

The fourth proportional to 18,723,036.70, 28,084,555.05 and 16,931,446.30 is: 25,397,169.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723,036.70 : 28,084,555.05 = 16,931,446.30 : x
  2. Step 2: Convert to fraction form
    18,723,036.70/28,084,555.05 = 16,931,446.30/x
  3. Step 3: Cross multiply
    18,723,036.70x = 28,084,555.05 × 16,931,446.30
  4. Step 4: Simplify right side
    18,723,036.70x = 475,512,135,688,468.88
  5. Step 5: Solve for x
    x = 475,512,135,688,468.88/18,723,036.70
  6. Step 6: Final answer
    x = 25,397,169.45

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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.