Home / 331,239,209.86-457,128,085.71-190,109,301.92

Finding the Fourth Proportional to 331,239,209.86, 457,128,085.71 and 190,109,301.92

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Solution

The fourth proportional to 331,239,209.86, 457,128,085.71 and 190,109,301.92 is: 262,361,153.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,239,209.86 : 457,128,085.71 = 190,109,301.92 : x
  2. Step 2: Convert to fraction form
    331,239,209.86/457,128,085.71 = 190,109,301.92/x
  3. Step 3: Cross multiply
    331,239,209.86x = 457,128,085.71 × 190,109,301.92
  4. Step 4: Simplify right side
    331,239,209.86x = 86,904,301,262,502,000
  5. Step 5: Solve for x
    x = 86,904,301,262,502,000/331,239,209.86
  6. Step 6: Final answer
    x = 262,361,153.74

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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.