Home / 786,702,460.80-1,180,053,691.20-378,555,772.80

Finding the Fourth Proportional to 786,702,460.80, 1,180,053,691.20 and 378,555,772.80

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Solution

The fourth proportional to 786,702,460.80, 1,180,053,691.20 and 378,555,772.80 is: 567,833,659.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,702,460.80 : 1,180,053,691.20 = 378,555,772.80 : x
  2. Step 2: Convert to fraction form
    786,702,460.80/1,180,053,691.20 = 378,555,772.80/x
  3. Step 3: Cross multiply
    786,702,460.80x = 1,180,053,691.20 × 378,555,772.80
  4. Step 4: Simplify right side
    786,702,460.80x = 446,716,137,017,708,608
  5. Step 5: Solve for x
    x = 446,716,137,017,708,608/786,702,460.80
  6. Step 6: Final answer
    x = 567,833,659.20

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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.