Home / 90,407,040.16-135,607,559.28-39,289,108

Finding the Fourth Proportional to 90,407,040.16, 135,607,559.28 and 39,289,108

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Solution

The fourth proportional to 90,407,040.16, 135,607,559.28 and 39,289,108 is: 58,932,357.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,407,040.16 : 135,607,559.28 = 39,289,108 : x
  2. Step 2: Convert to fraction form
    90,407,040.16/135,607,559.28 = 39,289,108/x
  3. Step 3: Cross multiply
    90,407,040.16x = 135,607,559.28 × 39,289,108
  4. Step 4: Simplify right side
    90,407,040.16x = 5,327,900,042,168,322
  5. Step 5: Solve for x
    x = 5,327,900,042,168,322/90,407,040.16
  6. Step 6: Final answer
    x = 58,932,357.84

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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.