Home / 19,813,638.34-27,317,508.69-12,831,979.42

Finding the Fourth Proportional to 19,813,638.34, 27,317,508.69 and 12,831,979.42

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Solution

The fourth proportional to 19,813,638.34, 27,317,508.69 and 12,831,979.42 is: 17,691,738.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,813,638.34 : 27,317,508.69 = 12,831,979.42 : x
  2. Step 2: Convert to fraction form
    19,813,638.34/27,317,508.69 = 12,831,979.42/x
  3. Step 3: Cross multiply
    19,813,638.34x = 27,317,508.69 × 12,831,979.42
  4. Step 4: Simplify right side
    19,813,638.34x = 350,537,709,315,751.19
  5. Step 5: Solve for x
    x = 350,537,709,315,751.19/19,813,638.34
  6. Step 6: Final answer
    x = 17,691,738.55

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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.