Home / 18,888,728.20-28,333,092.30-12,086,283.40

Finding the Fourth Proportional to 18,888,728.20, 28,333,092.30 and 12,086,283.40

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Solution

The fourth proportional to 18,888,728.20, 28,333,092.30 and 12,086,283.40 is: 18,129,425.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,888,728.20 : 28,333,092.30 = 12,086,283.40 : x
  2. Step 2: Convert to fraction form
    18,888,728.20/28,333,092.30 = 12,086,283.40/x
  3. Step 3: Cross multiply
    18,888,728.20x = 28,333,092.30 × 12,086,283.40
  4. Step 4: Simplify right side
    18,888,728.20x = 342,441,783,136,157.81
  5. Step 5: Solve for x
    x = 342,441,783,136,157.81/18,888,728.20
  6. Step 6: Final answer
    x = 18,129,425.10

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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.