Home / 205,825,108.96-308,672,111.28-67,618,635.52

Finding the Fourth Proportional to 205,825,108.96, 308,672,111.28 and 67,618,635.52

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Solution

The fourth proportional to 205,825,108.96, 308,672,111.28 and 67,618,635.52 is: 101,406,417.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,825,108.96 : 308,672,111.28 = 67,618,635.52 : x
  2. Step 2: Convert to fraction form
    205,825,108.96/308,672,111.28 = 67,618,635.52/x
  3. Step 3: Cross multiply
    205,825,108.96x = 308,672,111.28 × 67,618,635.52
  4. Step 4: Simplify right side
    205,825,108.96x = 20,871,986,987,831,196
  5. Step 5: Solve for x
    x = 20,871,986,987,831,196/205,825,108.96
  6. Step 6: Final answer
    x = 101,406,417.78

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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.