Home / 18,723,051.84-28,082,565.71-12,696,467.16

Finding the Fourth Proportional to 18,723,051.84, 28,082,565.71 and 12,696,467.16

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Solution

The fourth proportional to 18,723,051.84, 28,082,565.71 and 12,696,467.16 is: 19,043,336.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723,051.84 : 28,082,565.71 = 12,696,467.16 : x
  2. Step 2: Convert to fraction form
    18,723,051.84/28,082,565.71 = 12,696,467.16/x
  3. Step 3: Cross multiply
    18,723,051.84x = 28,082,565.71 × 12,696,467.16
  4. Step 4: Simplify right side
    18,723,051.84x = 356,549,373,305,557.12
  5. Step 5: Solve for x
    x = 356,549,373,305,557.12/18,723,051.84
  6. Step 6: Final answer
    x = 19,043,336.33

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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.