Home / 786,996,004.80-1,180,494,007.20-775,516,879.20

Finding the Fourth Proportional to 786,996,004.80, 1,180,494,007.20 and 775,516,879.20

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Solution

The fourth proportional to 786,996,004.80, 1,180,494,007.20 and 775,516,879.20 is: 1,163,275,318.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,996,004.80 : 1,180,494,007.20 = 775,516,879.20 : x
  2. Step 2: Convert to fraction form
    786,996,004.80/1,180,494,007.20 = 775,516,879.20/x
  3. Step 3: Cross multiply
    786,996,004.80x = 1,180,494,007.20 × 775,516,879.20
  4. Step 4: Simplify right side
    786,996,004.80x = 915,493,028,378,046,464
  5. Step 5: Solve for x
    x = 915,493,028,378,046,464/786,996,004.80
  6. Step 6: Final answer
    x = 1,163,275,318.80

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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.