Home / 303,722,178.27-455,749,120.35-128,818,006.26

Finding the Fourth Proportional to 303,722,178.27, 455,749,120.35 and 128,818,006.26

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Solution

The fourth proportional to 303,722,178.27, 455,749,120.35 and 128,818,006.26 is: 193,297,352.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,722,178.27 : 455,749,120.35 = 128,818,006.26 : x
  2. Step 2: Convert to fraction form
    303,722,178.27/455,749,120.35 = 128,818,006.26/x
  3. Step 3: Cross multiply
    303,722,178.27x = 455,749,120.35 × 128,818,006.26
  4. Step 4: Simplify right side
    303,722,178.27x = 58,708,693,038,235,800
  5. Step 5: Solve for x
    x = 58,708,693,038,235,800/303,722,178.27
  6. Step 6: Final answer
    x = 193,297,352.77

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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.