Home / 13,325,048.64-18,387,448.74-7,817,843.52

Finding the Fourth Proportional to 13,325,048.64, 18,387,448.74 and 7,817,843.52

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Solution

The fourth proportional to 13,325,048.64, 18,387,448.74 and 7,817,843.52 is: 10,787,967.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,325,048.64 : 18,387,448.74 = 7,817,843.52 : x
  2. Step 2: Convert to fraction form
    13,325,048.64/18,387,448.74 = 7,817,843.52/x
  3. Step 3: Cross multiply
    13,325,048.64x = 18,387,448.74 × 7,817,843.52
  4. Step 4: Simplify right side
    13,325,048.64x = 143,750,196,981,341.16
  5. Step 5: Solve for x
    x = 143,750,196,981,341.16/13,325,048.64
  6. Step 6: Final answer
    x = 10,787,967.90

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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.