Home / 14,258,522.40-21,387,783.60-12,690,880.80

Finding the Fourth Proportional to 14,258,522.40, 21,387,783.60 and 12,690,880.80

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Solution

The fourth proportional to 14,258,522.40, 21,387,783.60 and 12,690,880.80 is: 19,036,321.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,258,522.40 : 21,387,783.60 = 12,690,880.80 : x
  2. Step 2: Convert to fraction form
    14,258,522.40/21,387,783.60 = 12,690,880.80/x
  3. Step 3: Cross multiply
    14,258,522.40x = 21,387,783.60 × 12,690,880.80
  4. Step 4: Simplify right side
    14,258,522.40x = 271,429,812,243,794.91
  5. Step 5: Solve for x
    x = 271,429,812,243,794.91/14,258,522.40
  6. Step 6: Final answer
    x = 19,036,321.20

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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.