Home / 429,734,917.15-644,601,570.89-134,652,626.57

Finding the Fourth Proportional to 429,734,917.15, 644,601,570.89 and 134,652,626.57

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Solution

The fourth proportional to 429,734,917.15, 644,601,570.89 and 134,652,626.57 is: 201,978,687.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,734,917.15 : 644,601,570.89 = 134,652,626.57 : x
  2. Step 2: Convert to fraction form
    429,734,917.15/644,601,570.89 = 134,652,626.57/x
  3. Step 3: Cross multiply
    429,734,917.15x = 644,601,570.89 × 134,652,626.57
  4. Step 4: Simplify right side
    429,734,917.15x = 86,797,294,612,424,784
  5. Step 5: Solve for x
    x = 86,797,294,612,424,784/429,734,917.15
  6. Step 6: Final answer
    x = 201,978,687.67

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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.