Home / 561,911,409.20-843,157,738.20-407,736,328.88

Finding the Fourth Proportional to 561,911,409.20, 843,157,738.20 and 407,736,328.88

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Solution

The fourth proportional to 561,911,409.20, 843,157,738.20 and 407,736,328.88 is: 611,815,377.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,911,409.20 : 843,157,738.20 = 407,736,328.88 : x
  2. Step 2: Convert to fraction form
    561,911,409.20/843,157,738.20 = 407,736,328.88/x
  3. Step 3: Cross multiply
    561,911,409.20x = 843,157,738.20 × 407,736,328.88
  4. Step 4: Simplify right side
    561,911,409.20x = 343,786,040,840,432,128
  5. Step 5: Solve for x
    x = 343,786,040,840,432,128/561,911,409.20
  6. Step 6: Final answer
    x = 611,815,377.32

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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.