Home / 38,238,908.86-52,769,701.74-20,835,253.72

Finding the Fourth Proportional to 38,238,908.86, 52,769,701.74 and 20,835,253.72

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Solution

The fourth proportional to 38,238,908.86, 52,769,701.74 and 20,835,253.72 is: 28,752,654.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,238,908.86 : 52,769,701.74 = 20,835,253.72 : x
  2. Step 2: Convert to fraction form
    38,238,908.86/52,769,701.74 = 20,835,253.72/x
  3. Step 3: Cross multiply
    38,238,908.86x = 52,769,701.74 × 20,835,253.72
  4. Step 4: Simplify right side
    38,238,908.86x = 1,099,470,124,481,625.50
  5. Step 5: Solve for x
    x = 1,099,470,124,481,625.50/38,238,908.86
  6. Step 6: Final answer
    x = 28,752,654.23

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1.5x scale

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.