Home / 21,117,903.75-29,142,707.18-11,460,111.75

Finding the Fourth Proportional to 21,117,903.75, 29,142,707.18 and 11,460,111.75

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Solution

The fourth proportional to 21,117,903.75, 29,142,707.18 and 11,460,111.75 is: 15,814,954.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,117,903.75 : 29,142,707.18 = 11,460,111.75 : x
  2. Step 2: Convert to fraction form
    21,117,903.75/29,142,707.18 = 11,460,111.75/x
  3. Step 3: Cross multiply
    21,117,903.75x = 29,142,707.18 × 11,460,111.75
  4. Step 4: Simplify right side
    21,117,903.75x = 333,978,680,923,026.81
  5. Step 5: Solve for x
    x = 333,978,680,923,026.81/21,117,903.75
  6. Step 6: Final answer
    x = 15,814,954.22

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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.