Home / 342,360,912.61-472,418,200.78-191,661,820.44

Finding the Fourth Proportional to 342,360,912.61, 472,418,200.78 and 191,661,820.44

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Solution

The fourth proportional to 342,360,912.61, 472,418,200.78 and 191,661,820.44 is: 264,470,998.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,360,912.61 : 472,418,200.78 = 191,661,820.44 : x
  2. Step 2: Convert to fraction form
    342,360,912.61/472,418,200.78 = 191,661,820.44/x
  3. Step 3: Cross multiply
    342,360,912.61x = 472,418,200.78 × 191,661,820.44
  4. Step 4: Simplify right side
    342,360,912.61x = 90,544,532,370,484,224
  5. Step 5: Solve for x
    x = 90,544,532,370,484,224/342,360,912.61
  6. Step 6: Final answer
    x = 264,470,998.40

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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.