Home / 20,609,928.84-28,440,386.10-11,442,569.16

Finding the Fourth Proportional to 20,609,928.84, 28,440,386.10 and 11,442,569.16

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Solution

The fourth proportional to 20,609,928.84, 28,440,386.10 and 11,442,569.16 is: 15,790,014.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,609,928.84 : 28,440,386.10 = 11,442,569.16 : x
  2. Step 2: Convert to fraction form
    20,609,928.84/28,440,386.10 = 11,442,569.16/x
  3. Step 3: Cross multiply
    20,609,928.84x = 28,440,386.10 × 11,442,569.16
  4. Step 4: Simplify right side
    20,609,928.84x = 325,431,084,886,352.69
  5. Step 5: Solve for x
    x = 325,431,084,886,352.69/20,609,928.84
  6. Step 6: Final answer
    x = 15,790,014.97

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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.