Home / 38,421,997.09-53,022,197.45-20,780,919.34

Finding the Fourth Proportional to 38,421,997.09, 53,022,197.45 and 20,780,919.34

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Solution

The fourth proportional to 38,421,997.09, 53,022,197.45 and 20,780,919.34 is: 28,677,582.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,421,997.09 : 53,022,197.45 = 20,780,919.34 : x
  2. Step 2: Convert to fraction form
    38,421,997.09/53,022,197.45 = 20,780,919.34/x
  3. Step 3: Cross multiply
    38,421,997.09x = 53,022,197.45 × 20,780,919.34
  4. Step 4: Simplify right side
    38,421,997.09x = 1,101,850,008,357,400.38
  5. Step 5: Solve for x
    x = 1,101,850,008,357,400.38/38,421,997.09
  6. Step 6: Final answer
    x = 28,677,582.94

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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.