Home / 20,310,964.43-28,021,775.65-13,345,391.30

Finding the Fourth Proportional to 20,310,964.43, 28,021,775.65 and 13,345,391.30

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Solution

The fourth proportional to 20,310,964.43, 28,021,775.65 and 13,345,391.30 is: 18,411,807.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,310,964.43 : 28,021,775.65 = 13,345,391.30 : x
  2. Step 2: Convert to fraction form
    20,310,964.43/28,021,775.65 = 13,345,391.30/x
  3. Step 3: Cross multiply
    20,310,964.43x = 28,021,775.65 × 13,345,391.30
  4. Step 4: Simplify right side
    20,310,964.43x = 373,961,561,081,820.62
  5. Step 5: Solve for x
    x = 373,961,561,081,820.62/20,310,964.43
  6. Step 6: Final answer
    x = 18,411,807.20

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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.