Home / 436,726,959.20-655,090,438.80-207,144,447.20

Finding the Fourth Proportional to 436,726,959.20, 655,090,438.80 and 207,144,447.20

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Solution

The fourth proportional to 436,726,959.20, 655,090,438.80 and 207,144,447.20 is: 310,716,670.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,726,959.20 : 655,090,438.80 = 207,144,447.20 : x
  2. Step 2: Convert to fraction form
    436,726,959.20/655,090,438.80 = 207,144,447.20/x
  3. Step 3: Cross multiply
    436,726,959.20x = 655,090,438.80 × 207,144,447.20
  4. Step 4: Simplify right side
    436,726,959.20x = 135,698,346,811,231,408
  5. Step 5: Solve for x
    x = 135,698,346,811,231,408/436,726,959.20
  6. Step 6: Final answer
    x = 310,716,670.80

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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.