Home / 111,740,921.82-154,215,895.95-67,686,627.78

Finding the Fourth Proportional to 111,740,921.82, 154,215,895.95 and 67,686,627.78

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Solution

The fourth proportional to 111,740,921.82, 154,215,895.95 and 67,686,627.78 is: 93,415,677.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,740,921.82 : 154,215,895.95 = 67,686,627.78 : x
  2. Step 2: Convert to fraction form
    111,740,921.82/154,215,895.95 = 67,686,627.78/x
  3. Step 3: Cross multiply
    111,740,921.82x = 154,215,895.95 × 67,686,627.78
  4. Step 4: Simplify right side
    111,740,921.82x = 10,438,353,946,926,858
  5. Step 5: Solve for x
    x = 10,438,353,946,926,858/111,740,921.82
  6. Step 6: Final answer
    x = 93,415,677.77

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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.