Home / 860,794,851.80-1,188,263,431.79-578,700,896.78

Finding the Fourth Proportional to 860,794,851.80, 1,188,263,431.79 and 578,700,896.78

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Solution

The fourth proportional to 860,794,851.80, 1,188,263,431.79 and 578,700,896.78 is: 798,853,655.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,794,851.80 : 1,188,263,431.79 = 578,700,896.78 : x
  2. Step 2: Convert to fraction form
    860,794,851.80/1,188,263,431.79 = 578,700,896.78/x
  3. Step 3: Cross multiply
    860,794,851.80x = 1,188,263,431.79 × 578,700,896.78
  4. Step 4: Simplify right side
    860,794,851.80x = 687,649,113,592,170,880
  5. Step 5: Solve for x
    x = 687,649,113,592,170,880/860,794,851.80
  6. Step 6: Final answer
    x = 798,853,655.03

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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.