Home / 721,505,200.80-1,082,895,530.40-618,193,070.40

Finding the Fourth Proportional to 721,505,200.80, 1,082,895,530.40 and 618,193,070.40

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Solution

The fourth proportional to 721,505,200.80, 1,082,895,530.40 and 618,193,070.40 is: 927,836,018.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,505,200.80 : 1,082,895,530.40 = 618,193,070.40 : x
  2. Step 2: Convert to fraction form
    721,505,200.80/1,082,895,530.40 = 618,193,070.40/x
  3. Step 3: Cross multiply
    721,505,200.80x = 1,082,895,530.40 × 618,193,070.40
  4. Step 4: Simplify right side
    721,505,200.80x = 669,438,512,860,412,544
  5. Step 5: Solve for x
    x = 669,438,512,860,412,544/721,505,200.80
  6. Step 6: Final answer
    x = 927,836,018.53

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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.