Home / 13,879,972.95-19,154,961.25-7,685,019.79

Finding the Fourth Proportional to 13,879,972.95, 19,154,961.25 and 7,685,019.79

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Solution

The fourth proportional to 13,879,972.95, 19,154,961.25 and 7,685,019.79 is: 10,605,658.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,879,972.95 : 19,154,961.25 = 7,685,019.79 : x
  2. Step 2: Convert to fraction form
    13,879,972.95/19,154,961.25 = 7,685,019.79/x
  3. Step 3: Cross multiply
    13,879,972.95x = 19,154,961.25 × 7,685,019.79
  4. Step 4: Simplify right side
    13,879,972.95x = 147,206,256,282,933.12
  5. Step 5: Solve for x
    x = 147,206,256,282,933.12/13,879,972.95
  6. Step 6: Final answer
    x = 10,605,658.73

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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.