Home / 131,440,272.51-181,375,403.40-72,701,673.42

Finding the Fourth Proportional to 131,440,272.51, 181,375,403.40 and 72,701,673.42

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Solution

The fourth proportional to 131,440,272.51, 181,375,403.40 and 72,701,673.42 is: 100,321,576.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,440,272.51 : 181,375,403.40 = 72,701,673.42 : x
  2. Step 2: Convert to fraction form
    131,440,272.51/181,375,403.40 = 72,701,673.42/x
  3. Step 3: Cross multiply
    131,440,272.51x = 181,375,403.40 × 72,701,673.42
  4. Step 4: Simplify right side
    131,440,272.51x = 13,186,295,344,407,558
  5. Step 5: Solve for x
    x = 13,186,295,344,407,558/131,440,272.51
  6. Step 6: Final answer
    x = 100,321,576.43

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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.