Home / 13,879,967.78-19,154,954.12-7,685,014.64

Finding the Fourth Proportional to 13,879,967.78, 19,154,954.12 and 7,685,014.64

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Solution

The fourth proportional to 13,879,967.78, 19,154,954.12 and 7,685,014.64 is: 10,605,651.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,879,967.78 : 19,154,954.12 = 7,685,014.64 : x
  2. Step 2: Convert to fraction form
    13,879,967.78/19,154,954.12 = 7,685,014.64/x
  3. Step 3: Cross multiply
    13,879,967.78x = 19,154,954.12 × 7,685,014.64
  4. Step 4: Simplify right side
    13,879,967.78x = 147,206,102,706,528.47
  5. Step 5: Solve for x
    x = 147,206,102,706,528.47/13,879,967.78
  6. Step 6: Final answer
    x = 10,605,651.61

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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.