Home / 434,987,505.72-652,542,417.90-139,783,656.42

Finding the Fourth Proportional to 434,987,505.72, 652,542,417.90 and 139,783,656.42

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Solution

The fourth proportional to 434,987,505.72, 652,542,417.90 and 139,783,656.42 is: 209,695,138.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,987,505.72 : 652,542,417.90 = 139,783,656.42 : x
  2. Step 2: Convert to fraction form
    434,987,505.72/652,542,417.90 = 139,783,656.42/x
  3. Step 3: Cross multiply
    434,987,505.72x = 652,542,417.90 × 139,783,656.42
  4. Step 4: Simplify right side
    434,987,505.72x = 91,214,765,143,209,648
  5. Step 5: Solve for x
    x = 91,214,765,143,209,648/434,987,505.72
  6. Step 6: Final answer
    x = 209,695,138.24

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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.