Home / 30,172,705.54-45,288,287.56-28,534,095.79

Finding the Fourth Proportional to 30,172,705.54, 45,288,287.56 and 28,534,095.79

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Solution

The fourth proportional to 30,172,705.54, 45,288,287.56 and 28,534,095.79 is: 42,828,785.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,172,705.54 : 45,288,287.56 = 28,534,095.79 : x
  2. Step 2: Convert to fraction form
    30,172,705.54/45,288,287.56 = 28,534,095.79/x
  3. Step 3: Cross multiply
    30,172,705.54x = 45,288,287.56 × 28,534,095.79
  4. Step 4: Simplify right side
    30,172,705.54x = 1,292,260,335,324,552.25
  5. Step 5: Solve for x
    x = 1,292,260,335,324,552.25/30,172,705.54
  6. Step 6: Final answer
    x = 42,828,785.56

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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.