Home / 38,469,769.06-53,086,686.93-21,065,814.40

Finding the Fourth Proportional to 38,469,769.06, 53,086,686.93 and 21,065,814.40

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Solution

The fourth proportional to 38,469,769.06, 53,086,686.93 and 21,065,814.40 is: 29,069,950.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,469,769.06 : 53,086,686.93 = 21,065,814.40 : x
  2. Step 2: Convert to fraction form
    38,469,769.06/53,086,686.93 = 21,065,814.40/x
  3. Step 3: Cross multiply
    38,469,769.06x = 53,086,686.93 × 21,065,814.40
  4. Step 4: Simplify right side
    38,469,769.06x = 1,118,314,293,978,285.75
  5. Step 5: Solve for x
    x = 1,118,314,293,978,285.75/38,469,769.06
  6. Step 6: Final answer
    x = 29,069,950.80

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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.