Home / 38,238,917.86-52,769,714.16-20,835,262.72

Finding the Fourth Proportional to 38,238,917.86, 52,769,714.16 and 20,835,262.72

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Solution

The fourth proportional to 38,238,917.86, 52,769,714.16 and 20,835,262.72 is: 28,752,666.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,238,917.86 : 52,769,714.16 = 20,835,262.72 : x
  2. Step 2: Convert to fraction form
    38,238,917.86/52,769,714.16 = 20,835,262.72/x
  3. Step 3: Cross multiply
    38,238,917.86x = 52,769,714.16 × 20,835,262.72
  4. Step 4: Simplify right side
    38,238,917.86x = 1,099,470,858,182,904
  5. Step 5: Solve for x
    x = 1,099,470,858,182,904/38,238,917.86
  6. Step 6: Final answer
    x = 28,752,666.65

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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.