Home / 18,723,272.70-28,084,909.05-9,133,715.10

Finding the Fourth Proportional to 18,723,272.70, 28,084,909.05 and 9,133,715.10

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Solution

The fourth proportional to 18,723,272.70, 28,084,909.05 and 9,133,715.10 is: 13,700,572.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723,272.70 : 28,084,909.05 = 9,133,715.10 : x
  2. Step 2: Convert to fraction form
    18,723,272.70/28,084,909.05 = 9,133,715.10/x
  3. Step 3: Cross multiply
    18,723,272.70x = 28,084,909.05 × 9,133,715.10
  4. Step 4: Simplify right side
    18,723,272.70x = 256,519,557,872,111.66
  5. Step 5: Solve for x
    x = 256,519,557,872,111.66/18,723,272.70
  6. Step 6: Final answer
    x = 13,700,572.65

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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.