Home / 21,409,979.14-29,544,980.91-11,620,213.15

Finding the Fourth Proportional to 21,409,979.14, 29,544,980.91 and 11,620,213.15

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Solution

The fourth proportional to 21,409,979.14, 29,544,980.91 and 11,620,213.15 is: 16,035,465.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,409,979.14 : 29,544,980.91 = 11,620,213.15 : x
  2. Step 2: Convert to fraction form
    21,409,979.14/29,544,980.91 = 11,620,213.15/x
  3. Step 3: Cross multiply
    21,409,979.14x = 29,544,980.91 × 11,620,213.15
  4. Step 4: Simplify right side
    21,409,979.14x = 343,318,975,686,881
  5. Step 5: Solve for x
    x = 343,318,975,686,881/21,409,979.14
  6. Step 6: Final answer
    x = 16,035,465.21

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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.