Home / 18,724,462.16-28,109,088.12-11,154,992.72

Finding the Fourth Proportional to 18,724,462.16, 28,109,088.12 and 11,154,992.72

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Solution

The fourth proportional to 18,724,462.16, 28,109,088.12 and 11,154,992.72 is: 16,745,830.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,724,462.16 : 28,109,088.12 = 11,154,992.72 : x
  2. Step 2: Convert to fraction form
    18,724,462.16/28,109,088.12 = 11,154,992.72/x
  3. Step 3: Cross multiply
    18,724,462.16x = 28,109,088.12 × 11,154,992.72
  4. Step 4: Simplify right side
    18,724,462.16x = 313,556,673,344,438.50
  5. Step 5: Solve for x
    x = 313,556,673,344,438.50/18,724,462.16
  6. Step 6: Final answer
    x = 16,745,830.70

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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.