Home / 131,398,136.56-181,330,602.24-72,664,754.80

Finding the Fourth Proportional to 131,398,136.56, 181,330,602.24 and 72,664,754.80

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Solution

The fourth proportional to 131,398,136.56, 181,330,602.24 and 72,664,754.80 is: 100,278,010.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,398,136.56 : 181,330,602.24 = 72,664,754.80 : x
  2. Step 2: Convert to fraction form
    131,398,136.56/181,330,602.24 = 72,664,754.80/x
  3. Step 3: Cross multiply
    131,398,136.56x = 181,330,602.24 × 72,664,754.80
  4. Step 4: Simplify right side
    131,398,136.56x = 13,176,343,749,505,930
  5. Step 5: Solve for x
    x = 13,176,343,749,505,930/131,398,136.56
  6. Step 6: Final answer
    x = 100,278,010.74

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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.