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Finding the Fourth Proportional to 53,445,704.80, 80,168,557.20 and 45,792,954.40

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Solution

The fourth proportional to 53,445,704.80, 80,168,557.20 and 45,792,954.40 is: 68,689,431.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,445,704.80 : 80,168,557.20 = 45,792,954.40 : x
  2. Step 2: Convert to fraction form
    53,445,704.80/80,168,557.20 = 45,792,954.40/x
  3. Step 3: Cross multiply
    53,445,704.80x = 80,168,557.20 × 45,792,954.40
  4. Step 4: Simplify right side
    53,445,704.80x = 3,671,155,084,173,391.50
  5. Step 5: Solve for x
    x = 3,671,155,084,173,391.50/53,445,704.80
  6. Step 6: Final answer
    x = 68,689,431.60

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Similar ratio
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1.5x scale

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.