Home / 421,903,025.58-632,720,380.50-394,360,272.24

Finding the Fourth Proportional to 421,903,025.58, 632,720,380.50 and 394,360,272.24

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Solution

The fourth proportional to 421,903,025.58, 632,720,380.50 and 394,360,272.24 is: 591,415,008.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,903,025.58 : 632,720,380.50 = 394,360,272.24 : x
  2. Step 2: Convert to fraction form
    421,903,025.58/632,720,380.50 = 394,360,272.24/x
  3. Step 3: Cross multiply
    421,903,025.58x = 632,720,380.50 × 394,360,272.24
  4. Step 4: Simplify right side
    421,903,025.58x = 249,519,781,505,776,384
  5. Step 5: Solve for x
    x = 249,519,781,505,776,384/421,903,025.58
  6. Step 6: Final answer
    x = 591,415,008.61

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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.