Home / 13,879,972.01-19,154,959.95-7,685,018.85

Finding the Fourth Proportional to 13,879,972.01, 19,154,959.95 and 7,685,018.85

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Solution

The fourth proportional to 13,879,972.01, 19,154,959.95 and 7,685,018.85 is: 10,605,657.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,879,972.01 : 19,154,959.95 = 7,685,018.85 : x
  2. Step 2: Convert to fraction form
    13,879,972.01/19,154,959.95 = 7,685,018.85/x
  3. Step 3: Cross multiply
    13,879,972.01x = 19,154,959.95 × 7,685,018.85
  4. Step 4: Simplify right side
    13,879,972.01x = 147,206,228,286,745.03
  5. Step 5: Solve for x
    x = 147,206,228,286,745.03/13,879,972.01
  6. Step 6: Final answer
    x = 10,605,657.43

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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.