Home / 18,720,939.80-28,081,409.70-16,593,426.20

Finding the Fourth Proportional to 18,720,939.80, 28,081,409.70 and 16,593,426.20

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Solution

The fourth proportional to 18,720,939.80, 28,081,409.70 and 16,593,426.20 is: 24,890,139.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,720,939.80 : 28,081,409.70 = 16,593,426.20 : x
  2. Step 2: Convert to fraction form
    18,720,939.80/28,081,409.70 = 16,593,426.20/x
  3. Step 3: Cross multiply
    18,720,939.80x = 28,081,409.70 × 16,593,426.20
  4. Step 4: Simplify right side
    18,720,939.80x = 465,966,799,448,914.12
  5. Step 5: Solve for x
    x = 465,966,799,448,914.12/18,720,939.80
  6. Step 6: Final answer
    x = 24,890,139.30

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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.