Home / 21,988,640.40-30,347,966.08-12,202,228.16

Finding the Fourth Proportional to 21,988,640.40, 30,347,966.08 and 12,202,228.16

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Solution

The fourth proportional to 21,988,640.40, 30,347,966.08 and 12,202,228.16 is: 16,841,096.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,988,640.40 : 30,347,966.08 = 12,202,228.16 : x
  2. Step 2: Convert to fraction form
    21,988,640.40/30,347,966.08 = 12,202,228.16/x
  3. Step 3: Cross multiply
    21,988,640.40x = 30,347,966.08 × 12,202,228.16
  4. Step 4: Simplify right side
    21,988,640.40x = 370,312,806,300,100.81
  5. Step 5: Solve for x
    x = 370,312,806,300,100.81/21,988,640.40
  6. Step 6: Final answer
    x = 16,841,096.11

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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.