Home / 121,130,627.80-181,443,999.30-100,975,235.80

Finding the Fourth Proportional to 121,130,627.80, 181,443,999.30 and 100,975,235.80

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Solution

The fourth proportional to 121,130,627.80, 181,443,999.30 and 100,975,235.80 is: 151,252,832.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,130,627.80 : 181,443,999.30 = 100,975,235.80 : x
  2. Step 2: Convert to fraction form
    121,130,627.80/181,443,999.30 = 100,975,235.80/x
  3. Step 3: Cross multiply
    121,130,627.80x = 181,443,999.30 × 100,975,235.80
  4. Step 4: Simplify right side
    121,130,627.80x = 18,321,350,613,812,536
  5. Step 5: Solve for x
    x = 18,321,350,613,812,536/121,130,627.80
  6. Step 6: Final answer
    x = 151,252,832.97

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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.