Home / 12,983,009.89-17,914,992.74-7,478,175.07

Finding the Fourth Proportional to 12,983,009.89, 17,914,992.74 and 7,478,175.07

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Solution

The fourth proportional to 12,983,009.89, 17,914,992.74 and 7,478,175.07 is: 10,318,982.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,983,009.89 : 17,914,992.74 = 7,478,175.07 : x
  2. Step 2: Convert to fraction form
    12,983,009.89/17,914,992.74 = 7,478,175.07/x
  3. Step 3: Cross multiply
    12,983,009.89x = 17,914,992.74 × 7,478,175.07
  4. Step 4: Simplify right side
    12,983,009.89x = 133,971,451,960,533.16
  5. Step 5: Solve for x
    x = 133,971,451,960,533.16/12,983,009.89
  6. Step 6: Final answer
    x = 10,318,982.51

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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.