Home / 38,238,916.86-52,769,712.78-20,835,261.72

Finding the Fourth Proportional to 38,238,916.86, 52,769,712.78 and 20,835,261.72

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Solution

The fourth proportional to 38,238,916.86, 52,769,712.78 and 20,835,261.72 is: 28,752,665.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,238,916.86 : 52,769,712.78 = 20,835,261.72 : x
  2. Step 2: Convert to fraction form
    38,238,916.86/52,769,712.78 = 20,835,261.72/x
  3. Step 3: Cross multiply
    38,238,916.86x = 52,769,712.78 × 20,835,261.72
  4. Step 4: Simplify right side
    38,238,916.86x = 1,099,470,776,660,528.75
  5. Step 5: Solve for x
    x = 1,099,470,776,660,528.75/38,238,916.86
  6. Step 6: Final answer
    x = 28,752,665.27

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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.