Home / 38,469,763.16-53,086,678.84-21,065,808.53

Finding the Fourth Proportional to 38,469,763.16, 53,086,678.84 and 21,065,808.53

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Solution

The fourth proportional to 38,469,763.16, 53,086,678.84 and 21,065,808.53 is: 29,069,942.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,469,763.16 : 53,086,678.84 = 21,065,808.53 : x
  2. Step 2: Convert to fraction form
    38,469,763.16/53,086,678.84 = 21,065,808.53/x
  3. Step 3: Cross multiply
    38,469,763.16x = 53,086,678.84 × 21,065,808.53
  4. Step 4: Simplify right side
    38,469,763.16x = 1,118,313,811,618,944.50
  5. Step 5: Solve for x
    x = 1,118,313,811,618,944.50/38,469,763.16
  6. Step 6: Final answer
    x = 29,069,942.72

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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.