Home / 786,797,310.40-1,180,195,965.60-378,650,622.40

Finding the Fourth Proportional to 786,797,310.40, 1,180,195,965.60 and 378,650,622.40

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Solution

The fourth proportional to 786,797,310.40, 1,180,195,965.60 and 378,650,622.40 is: 567,975,933.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,797,310.40 : 1,180,195,965.60 = 378,650,622.40 : x
  2. Step 2: Convert to fraction form
    786,797,310.40/1,180,195,965.60 = 378,650,622.40/x
  3. Step 3: Cross multiply
    786,797,310.40x = 1,180,195,965.60 × 378,650,622.40
  4. Step 4: Simplify right side
    786,797,310.40x = 446,881,936,928,408,896
  5. Step 5: Solve for x
    x = 446,881,936,928,408,896/786,797,310.40
  6. Step 6: Final answer
    x = 567,975,933.60

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1.5x scale

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.