Home / 138,124,086.72-190,565,971.60-98,437,868.88

Finding the Fourth Proportional to 138,124,086.72, 190,565,971.60 and 98,437,868.88

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Solution

The fourth proportional to 138,124,086.72, 190,565,971.60 and 98,437,868.88 is: 135,811,997.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,124,086.72 : 190,565,971.60 = 98,437,868.88 : x
  2. Step 2: Convert to fraction form
    138,124,086.72/190,565,971.60 = 98,437,868.88/x
  3. Step 3: Cross multiply
    138,124,086.72x = 190,565,971.60 × 98,437,868.88
  4. Step 4: Simplify right side
    138,124,086.72x = 18,758,908,125,350,604
  5. Step 5: Solve for x
    x = 18,758,908,125,350,604/138,124,086.72
  6. Step 6: Final answer
    x = 135,811,997.54

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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.