Home / 145,373,563.12-200,615,517.75-79,294,057.96

Finding the Fourth Proportional to 145,373,563.12, 200,615,517.75 and 79,294,057.96

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Solution

The fourth proportional to 145,373,563.12, 200,615,517.75 and 79,294,057.96 is: 109,425,800.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,373,563.12 : 200,615,517.75 = 79,294,057.96 : x
  2. Step 2: Convert to fraction form
    145,373,563.12/200,615,517.75 = 79,294,057.96/x
  3. Step 3: Cross multiply
    145,373,563.12x = 200,615,517.75 × 79,294,057.96
  4. Step 4: Simplify right side
    145,373,563.12x = 15,907,618,492,143,908
  5. Step 5: Solve for x
    x = 15,907,618,492,143,908/145,373,563.12
  6. Step 6: Final answer
    x = 109,425,800.34

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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.