Home / 27,819,624.56-38,346,739.74-21,929,661.16

Finding the Fourth Proportional to 27,819,624.56, 38,346,739.74 and 21,929,661.16

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Solution

The fourth proportional to 27,819,624.56, 38,346,739.74 and 21,929,661.16 is: 30,227,978.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,819,624.56 : 38,346,739.74 = 21,929,661.16 : x
  2. Step 2: Convert to fraction form
    27,819,624.56/38,346,739.74 = 21,929,661.16/x
  3. Step 3: Cross multiply
    27,819,624.56x = 38,346,739.74 × 21,929,661.16
  4. Step 4: Simplify right side
    27,819,624.56x = 840,931,008,993,039.62
  5. Step 5: Solve for x
    x = 840,931,008,993,039.62/27,819,624.56
  6. Step 6: Final answer
    x = 30,227,978.36

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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.