Home / 439,824,409.25-659,416,742.40-206,534,909.44

Finding the Fourth Proportional to 439,824,409.25, 659,416,742.40 and 206,534,909.44

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Solution

The fourth proportional to 439,824,409.25, 659,416,742.40 and 206,534,909.44 is: 309,652,157.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,824,409.25 : 659,416,742.40 = 206,534,909.44 : x
  2. Step 2: Convert to fraction form
    439,824,409.25/659,416,742.40 = 206,534,909.44/x
  3. Step 3: Cross multiply
    439,824,409.25x = 659,416,742.40 × 206,534,909.44
  4. Step 4: Simplify right side
    439,824,409.25x = 136,192,577,174,803,808
  5. Step 5: Solve for x
    x = 136,192,577,174,803,808/439,824,409.25
  6. Step 6: Final answer
    x = 309,652,157.34

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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.