Home / 310,743,346,928.10-428,821,292,292.72-173,568,125,107.86

Finding the Fourth Proportional to 310,743,346,928.10, 428,821,292,292.72 and 173,568,125,107.86

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Solution

The fourth proportional to 310,743,346,928.10, 428,821,292,292.72 and 173,568,125,107.86 is: 239,521,484,354.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,743,346,928.10 : 428,821,292,292.72 = 173,568,125,107.86 : x
  2. Step 2: Convert to fraction form
    310,743,346,928.10/428,821,292,292.72 = 173,568,125,107.86/x
  3. Step 3: Cross multiply
    310,743,346,928.10x = 428,821,292,292.72 × 173,568,125,107.86
  4. Step 4: Simplify right side
    310,743,346,928.10x = 74,429,707,709,577,015,853,056
  5. Step 5: Solve for x
    x = 74,429,707,709,577,015,853,056/310,743,346,928.10
  6. Step 6: Final answer
    x = 239,521,484,354.74

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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.