Home / 21,987,779.07-30,330,528.48-13,713,476.22

Finding the Fourth Proportional to 21,987,779.07, 30,330,528.48 and 13,713,476.22

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Solution

The fourth proportional to 21,987,779.07, 30,330,528.48 and 13,713,476.22 is: 18,916,734.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,987,779.07 : 30,330,528.48 = 13,713,476.22 : x
  2. Step 2: Convert to fraction form
    21,987,779.07/30,330,528.48 = 13,713,476.22/x
  3. Step 3: Cross multiply
    21,987,779.07x = 30,330,528.48 × 13,713,476.22
  4. Step 4: Simplify right side
    21,987,779.07x = 415,936,981,050,512.75
  5. Step 5: Solve for x
    x = 415,936,981,050,512.75/21,987,779.07
  6. Step 6: Final answer
    x = 18,916,734.60

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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.