Home / 13,831,220.40-20,746,830.60-12,886,436.40

Finding the Fourth Proportional to 13,831,220.40, 20,746,830.60 and 12,886,436.40

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Solution

The fourth proportional to 13,831,220.40, 20,746,830.60 and 12,886,436.40 is: 19,329,654.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,831,220.40 : 20,746,830.60 = 12,886,436.40 : x
  2. Step 2: Convert to fraction form
    13,831,220.40/20,746,830.60 = 12,886,436.40/x
  3. Step 3: Cross multiply
    13,831,220.40x = 20,746,830.60 × 12,886,436.40
  4. Step 4: Simplify right side
    13,831,220.40x = 267,352,713,028,473.88
  5. Step 5: Solve for x
    x = 267,352,713,028,473.88/13,831,220.40
  6. Step 6: Final answer
    x = 19,329,654.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.