Home / 12,922,020.72-17,832,506.40-7,121,010.51

Finding the Fourth Proportional to 12,922,020.72, 17,832,506.40 and 7,121,010.51

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Solution

The fourth proportional to 12,922,020.72, 17,832,506.40 and 7,121,010.51 is: 9,827,059.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,922,020.72 : 17,832,506.40 = 7,121,010.51 : x
  2. Step 2: Convert to fraction form
    12,922,020.72/17,832,506.40 = 7,121,010.51/x
  3. Step 3: Cross multiply
    12,922,020.72x = 17,832,506.40 × 7,121,010.51
  4. Step 4: Simplify right side
    12,922,020.72x = 126,985,465,494,042.25
  5. Step 5: Solve for x
    x = 126,985,465,494,042.25/12,922,020.72
  6. Step 6: Final answer
    x = 9,827,059.42

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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.