Home / 303,722,358.60-455,749,391.49-128,818,187.46

Finding the Fourth Proportional to 303,722,358.60, 455,749,391.49 and 128,818,187.46

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Solution

The fourth proportional to 303,722,358.60, 455,749,391.49 and 128,818,187.46 is: 193,297,624.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,722,358.60 : 455,749,391.49 = 128,818,187.46 : x
  2. Step 2: Convert to fraction form
    303,722,358.60/455,749,391.49 = 128,818,187.46/x
  3. Step 3: Cross multiply
    303,722,358.60x = 455,749,391.49 × 128,818,187.46
  4. Step 4: Simplify right side
    303,722,358.60x = 58,708,810,547,739,744
  5. Step 5: Solve for x
    x = 58,708,810,547,739,744/303,722,358.60
  6. Step 6: Final answer
    x = 193,297,624.90

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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.