Home / 28,404,220.80-42,606,331.20-18,200,553.60

Finding the Fourth Proportional to 28,404,220.80, 42,606,331.20 and 18,200,553.60

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Solution

The fourth proportional to 28,404,220.80, 42,606,331.20 and 18,200,553.60 is: 27,300,830.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,404,220.80 : 42,606,331.20 = 18,200,553.60 : x
  2. Step 2: Convert to fraction form
    28,404,220.80/42,606,331.20 = 18,200,553.60/x
  3. Step 3: Cross multiply
    28,404,220.80x = 42,606,331.20 × 18,200,553.60
  4. Step 4: Simplify right side
    28,404,220.80x = 775,458,814,704,952.50
  5. Step 5: Solve for x
    x = 775,458,814,704,952.50/28,404,220.80
  6. Step 6: Final answer
    x = 27,300,830.40

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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.