Home / 20,175,809.20-30,263,713.80-18,616,915.60

Finding the Fourth Proportional to 20,175,809.20, 30,263,713.80 and 18,616,915.60

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Solution

The fourth proportional to 20,175,809.20, 30,263,713.80 and 18,616,915.60 is: 27,925,373.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,175,809.20 : 30,263,713.80 = 18,616,915.60 : x
  2. Step 2: Convert to fraction form
    20,175,809.20/30,263,713.80 = 18,616,915.60/x
  3. Step 3: Cross multiply
    20,175,809.20x = 30,263,713.80 × 18,616,915.60
  4. Step 4: Simplify right side
    20,175,809.20x = 563,417,005,557,155.38
  5. Step 5: Solve for x
    x = 563,417,005,557,155.38/20,175,809.20
  6. Step 6: Final answer
    x = 27,925,373.40

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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.