Home / 20,687,747.70-31,045,618.35-9,322,346.10

Finding the Fourth Proportional to 20,687,747.70, 31,045,618.35 and 9,322,346.10

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Solution

The fourth proportional to 20,687,747.70, 31,045,618.35 and 9,322,346.10 is: 13,989,826.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,687,747.70 : 31,045,618.35 = 9,322,346.10 : x
  2. Step 2: Convert to fraction form
    20,687,747.70/31,045,618.35 = 9,322,346.10/x
  3. Step 3: Cross multiply
    20,687,747.70x = 31,045,618.35 × 9,322,346.10
  4. Step 4: Simplify right side
    20,687,747.70x = 289,417,999,147,210.94
  5. Step 5: Solve for x
    x = 289,417,999,147,210.94/20,687,747.70
  6. Step 6: Final answer
    x = 13,989,826.41

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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.