Home / 21,993,647.40-32,990,471.10-11,789,980.20

Finding the Fourth Proportional to 21,993,647.40, 32,990,471.10 and 11,789,980.20

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Solution

The fourth proportional to 21,993,647.40, 32,990,471.10 and 11,789,980.20 is: 17,684,970.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,993,647.40 : 32,990,471.10 = 11,789,980.20 : x
  2. Step 2: Convert to fraction form
    21,993,647.40/32,990,471.10 = 11,789,980.20/x
  3. Step 3: Cross multiply
    21,993,647.40x = 32,990,471.10 × 11,789,980.20
  4. Step 4: Simplify right side
    21,993,647.40x = 388,957,001,057,672.19
  5. Step 5: Solve for x
    x = 388,957,001,057,672.19/21,993,647.40
  6. Step 6: Final answer
    x = 17,684,970.30

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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.