Home / 38,478,067.41-53,099,784.21-20,837,000.37

Finding the Fourth Proportional to 38,478,067.41, 53,099,784.21 and 20,837,000.37

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Solution

The fourth proportional to 38,478,067.41, 53,099,784.21 and 20,837,000.37 is: 28,755,088.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,478,067.41 : 53,099,784.21 = 20,837,000.37 : x
  2. Step 2: Convert to fraction form
    38,478,067.41/53,099,784.21 = 20,837,000.37/x
  3. Step 3: Cross multiply
    38,478,067.41x = 53,099,784.21 × 20,837,000.37
  4. Step 4: Simplify right side
    38,478,067.41x = 1,106,440,223,230,690.25
  5. Step 5: Solve for x
    x = 1,106,440,223,230,690.25/38,478,067.41
  6. Step 6: Final answer
    x = 28,755,088.23

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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.