Home / 436,919,688.74-655,385,212.53-145,786,811.51

Finding the Fourth Proportional to 436,919,688.74, 655,385,212.53 and 145,786,811.51

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Solution

The fourth proportional to 436,919,688.74, 655,385,212.53 and 145,786,811.51 is: 218,682,112.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,919,688.74 : 655,385,212.53 = 145,786,811.51 : x
  2. Step 2: Convert to fraction form
    436,919,688.74/655,385,212.53 = 145,786,811.51/x
  3. Step 3: Cross multiply
    436,919,688.74x = 655,385,212.53 × 145,786,811.51
  4. Step 4: Simplify right side
    436,919,688.74x = 95,546,520,442,275,472
  5. Step 5: Solve for x
    x = 95,546,520,442,275,472/436,919,688.74
  6. Step 6: Final answer
    x = 218,682,112.31

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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.