Home / 145,618,878.28-200,952,724.26-79,539,365.96

Finding the Fourth Proportional to 145,618,878.28, 200,952,724.26 and 79,539,365.96

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Solution

The fourth proportional to 145,618,878.28, 200,952,724.26 and 79,539,365.96 is: 109,763,599.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,618,878.28 : 200,952,724.26 = 79,539,365.96 : x
  2. Step 2: Convert to fraction form
    145,618,878.28/200,952,724.26 = 79,539,365.96/x
  3. Step 3: Cross multiply
    145,618,878.28x = 200,952,724.26 × 79,539,365.96
  4. Step 4: Simplify right side
    145,618,878.28x = 15,983,652,275,575,108
  5. Step 5: Solve for x
    x = 15,983,652,275,575,108/145,618,878.28
  6. Step 6: Final answer
    x = 109,763,599.78

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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.