Home / 318,553,259,944.22-439,603,675,099.72-172,065,720,683.61

Finding the Fourth Proportional to 318,553,259,944.22, 439,603,675,099.72 and 172,065,720,683.61

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Solution

The fourth proportional to 318,553,259,944.22, 439,603,675,099.72 and 172,065,720,683.61 is: 237,450,789,812.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,553,259,944.22 : 439,603,675,099.72 = 172,065,720,683.61 : x
  2. Step 2: Convert to fraction form
    318,553,259,944.22/439,603,675,099.72 = 172,065,720,683.61/x
  3. Step 3: Cross multiply
    318,553,259,944.22x = 439,603,675,099.72 × 172,065,720,683.61
  4. Step 4: Simplify right side
    318,553,259,944.22x = 75,640,723,171,196,851,453,952
  5. Step 5: Solve for x
    x = 75,640,723,171,196,851,453,952/318,553,259,944.22
  6. Step 6: Final answer
    x = 237,450,789,812.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.