Home / 145,179,713.64-200,350,311.78-79,103,334.12

Finding the Fourth Proportional to 145,179,713.64, 200,350,311.78 and 79,103,334.12

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Solution

The fourth proportional to 145,179,713.64, 200,350,311.78 and 79,103,334.12 is: 109,163,858.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,179,713.64 : 200,350,311.78 = 79,103,334.12 : x
  2. Step 2: Convert to fraction form
    145,179,713.64/200,350,311.78 = 79,103,334.12/x
  3. Step 3: Cross multiply
    145,179,713.64x = 200,350,311.78 × 79,103,334.12
  4. Step 4: Simplify right side
    145,179,713.64x = 15,848,377,653,779,512
  5. Step 5: Solve for x
    x = 15,848,377,653,779,512/145,179,713.64
  6. Step 6: Final answer
    x = 109,163,858.07

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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.