Home / 5,384,485.80-8,076,728.70-2,191,903.20

Finding the Fourth Proportional to 5,384,485.80, 8,076,728.70 and 2,191,903.20

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Solution

The fourth proportional to 5,384,485.80, 8,076,728.70 and 2,191,903.20 is: 3,287,854.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,384,485.80 : 8,076,728.70 = 2,191,903.20 : x
  2. Step 2: Convert to fraction form
    5,384,485.80/8,076,728.70 = 2,191,903.20/x
  3. Step 3: Cross multiply
    5,384,485.80x = 8,076,728.70 × 2,191,903.20
  4. Step 4: Simplify right side
    5,384,485.80x = 17,703,407,483,061.84
  5. Step 5: Solve for x
    x = 17,703,407,483,061.84/5,384,485.80
  6. Step 6: Final answer
    x = 3,287,854.80

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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.