Home / 38,478,068.13-53,099,785.22-20,837,001.09

Finding the Fourth Proportional to 38,478,068.13, 53,099,785.22 and 20,837,001.09

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Solution

The fourth proportional to 38,478,068.13, 53,099,785.22 and 20,837,001.09 is: 28,755,089.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,478,068.13 : 53,099,785.22 = 20,837,001.09 : x
  2. Step 2: Convert to fraction form
    38,478,068.13/53,099,785.22 = 20,837,001.09/x
  3. Step 3: Cross multiply
    38,478,068.13x = 53,099,785.22 × 20,837,001.09
  4. Step 4: Simplify right side
    38,478,068.13x = 1,106,440,282,520,133.62
  5. Step 5: Solve for x
    x = 1,106,440,282,520,133.62/38,478,068.13
  6. Step 6: Final answer
    x = 28,755,089.23

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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.