Home / 171,428,042.93-257,147,397.23-81,567,701.19

Finding the Fourth Proportional to 171,428,042.93, 257,147,397.23 and 81,567,701.19

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Solution

The fourth proportional to 171,428,042.93, 257,147,397.23 and 81,567,701.19 is: 122,354,089.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,428,042.93 : 257,147,397.23 = 81,567,701.19 : x
  2. Step 2: Convert to fraction form
    171,428,042.93/257,147,397.23 = 81,567,701.19/x
  3. Step 3: Cross multiply
    171,428,042.93x = 257,147,397.23 × 81,567,701.19
  4. Step 4: Simplify right side
    171,428,042.93x = 20,974,922,058,635,036
  5. Step 5: Solve for x
    x = 20,974,922,058,635,036/171,428,042.93
  6. Step 6: Final answer
    x = 122,354,089.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.