Home / 38,523,917.12-53,162,992.77-21,119,888.66

Finding the Fourth Proportional to 38,523,917.12, 53,162,992.77 and 21,119,888.66

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Solution

The fourth proportional to 38,523,917.12, 53,162,992.77 and 21,119,888.66 is: 29,145,439.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,523,917.12 : 53,162,992.77 = 21,119,888.66 : x
  2. Step 2: Convert to fraction form
    38,523,917.12/53,162,992.77 = 21,119,888.66/x
  3. Step 3: Cross multiply
    38,523,917.12x = 53,162,992.77 × 21,119,888.66
  4. Step 4: Simplify right side
    38,523,917.12x = 1,122,796,487,868,970.12
  5. Step 5: Solve for x
    x = 1,122,796,487,868,970.12/38,523,917.12
  6. Step 6: Final answer
    x = 29,145,439.30

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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.