Home / 20,157,578.07-27,816,656.39-11,900,300.16

Finding the Fourth Proportional to 20,157,578.07, 27,816,656.39 and 11,900,300.16

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Solution

The fourth proportional to 20,157,578.07, 27,816,656.39 and 11,900,300.16 is: 16,421,941.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,157,578.07 : 27,816,656.39 = 11,900,300.16 : x
  2. Step 2: Convert to fraction form
    20,157,578.07/27,816,656.39 = 11,900,300.16/x
  3. Step 3: Cross multiply
    20,157,578.07x = 27,816,656.39 × 11,900,300.16
  4. Step 4: Simplify right side
    20,157,578.07x = 331,026,560,578,019.12
  5. Step 5: Solve for x
    x = 331,026,560,578,019.12/20,157,578.07
  6. Step 6: Final answer
    x = 16,421,941.14

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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.