Home / 21,504,921.80-32,257,382.70-19,315,200.20

Finding the Fourth Proportional to 21,504,921.80, 32,257,382.70 and 19,315,200.20

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Solution

The fourth proportional to 21,504,921.80, 32,257,382.70 and 19,315,200.20 is: 28,972,800.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,504,921.80 : 32,257,382.70 = 19,315,200.20 : x
  2. Step 2: Convert to fraction form
    21,504,921.80/32,257,382.70 = 19,315,200.20/x
  3. Step 3: Cross multiply
    21,504,921.80x = 32,257,382.70 × 19,315,200.20
  4. Step 4: Simplify right side
    21,504,921.80x = 623,057,804,778,516.50
  5. Step 5: Solve for x
    x = 623,057,804,778,516.50/21,504,921.80
  6. Step 6: Final answer
    x = 28,972,800.30

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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.