Home / 13,879,981.05-19,154,972.25-7,685,027.43

Finding the Fourth Proportional to 13,879,981.05, 19,154,972.25 and 7,685,027.43

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Solution

The fourth proportional to 13,879,981.05, 19,154,972.25 and 7,685,027.43 is: 10,605,669.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,879,981.05 : 19,154,972.25 = 7,685,027.43 : x
  2. Step 2: Convert to fraction form
    13,879,981.05/19,154,972.25 = 7,685,027.43/x
  3. Step 3: Cross multiply
    13,879,981.05x = 19,154,972.25 × 7,685,027.43
  4. Step 4: Simplify right side
    13,879,981.05x = 147,206,487,162,138.81
  5. Step 5: Solve for x
    x = 147,206,487,162,138.81/13,879,981.05
  6. Step 6: Final answer
    x = 10,605,669.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.