Home / 19,813,436.76-27,317,231.43-12,831,778.25

Finding the Fourth Proportional to 19,813,436.76, 27,317,231.43 and 12,831,778.25

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Solution

The fourth proportional to 19,813,436.76, 27,317,231.43 and 12,831,778.25 is: 17,691,461.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,813,436.76 : 27,317,231.43 = 12,831,778.25 : x
  2. Step 2: Convert to fraction form
    19,813,436.76/27,317,231.43 = 12,831,778.25/x
  3. Step 3: Cross multiply
    19,813,436.76x = 27,317,231.43 × 12,831,778.25
  4. Step 4: Simplify right side
    19,813,436.76x = 350,528,655,977,104.19
  5. Step 5: Solve for x
    x = 350,528,655,977,104.19/19,813,436.76
  6. Step 6: Final answer
    x = 17,691,461.62

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Double scale
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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.