Home / 21,112,345.22-31,673,293.06-11,396,749.68

Finding the Fourth Proportional to 21,112,345.22, 31,673,293.06 and 11,396,749.68

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Solution

The fourth proportional to 21,112,345.22, 31,673,293.06 and 11,396,749.68 is: 17,097,702.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,112,345.22 : 31,673,293.06 = 11,396,749.68 : x
  2. Step 2: Convert to fraction form
    21,112,345.22/31,673,293.06 = 11,396,749.68/x
  3. Step 3: Cross multiply
    21,112,345.22x = 31,673,293.06 × 11,396,749.68
  4. Step 4: Simplify right side
    21,112,345.22x = 360,972,592,681,491.81
  5. Step 5: Solve for x
    x = 360,972,592,681,491.81/21,112,345.22
  6. Step 6: Final answer
    x = 17,097,702.26

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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.