Home / 21,218,005.46-31,827,230.54-16,985,081.54

Finding the Fourth Proportional to 21,218,005.46, 31,827,230.54 and 16,985,081.54

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Solution

The fourth proportional to 21,218,005.46, 31,827,230.54 and 16,985,081.54 is: 25,477,800.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,218,005.46 : 31,827,230.54 = 16,985,081.54 : x
  2. Step 2: Convert to fraction form
    21,218,005.46/31,827,230.54 = 16,985,081.54/x
  3. Step 3: Cross multiply
    21,218,005.46x = 31,827,230.54 × 16,985,081.54
  4. Step 4: Simplify right side
    21,218,005.46x = 540,588,105,670,216.69
  5. Step 5: Solve for x
    x = 540,588,105,670,216.69/21,218,005.46
  6. Step 6: Final answer
    x = 25,477,800.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.