Home / 522,139,617.36-783,298,655.64-215,263,976.40

Finding the Fourth Proportional to 522,139,617.36, 783,298,655.64 and 215,263,976.40

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Solution

The fourth proportional to 522,139,617.36, 783,298,655.64 and 215,263,976.40 is: 322,932,751.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,139,617.36 : 783,298,655.64 = 215,263,976.40 : x
  2. Step 2: Convert to fraction form
    522,139,617.36/783,298,655.64 = 215,263,976.40/x
  3. Step 3: Cross multiply
    522,139,617.36x = 783,298,655.64 × 215,263,976.40
  4. Step 4: Simplify right side
    522,139,617.36x = 168,615,983,321,840,704
  5. Step 5: Solve for x
    x = 168,615,983,321,840,704/522,139,617.36
  6. Step 6: Final answer
    x = 322,932,751.54

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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.