Home / 523,302,221.56-722,172,470.16-288,368,015.68

Finding the Fourth Proportional to 523,302,221.56, 722,172,470.16 and 288,368,015.68

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Solution

The fourth proportional to 523,302,221.56, 722,172,470.16 and 288,368,015.68 is: 397,956,350.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,302,221.56 : 722,172,470.16 = 288,368,015.68 : x
  2. Step 2: Convert to fraction form
    523,302,221.56/722,172,470.16 = 288,368,015.68/x
  3. Step 3: Cross multiply
    523,302,221.56x = 722,172,470.16 × 288,368,015.68
  4. Step 4: Simplify right side
    523,302,221.56x = 208,251,442,198,763,200
  5. Step 5: Solve for x
    x = 208,251,442,198,763,200/523,302,221.56
  6. Step 6: Final answer
    x = 397,956,350.31

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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.