Home / 28,392,603.80-42,588,905.70-18,188,936.60

Finding the Fourth Proportional to 28,392,603.80, 42,588,905.70 and 18,188,936.60

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Solution

The fourth proportional to 28,392,603.80, 42,588,905.70 and 18,188,936.60 is: 27,283,404.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,392,603.80 : 42,588,905.70 = 18,188,936.60 : x
  2. Step 2: Convert to fraction form
    28,392,603.80/42,588,905.70 = 18,188,936.60/x
  3. Step 3: Cross multiply
    28,392,603.80x = 42,588,905.70 × 18,188,936.60
  4. Step 4: Simplify right side
    28,392,603.80x = 774,646,905,640,678.75
  5. Step 5: Solve for x
    x = 774,646,905,640,678.75/28,392,603.80
  6. Step 6: Final answer
    x = 27,283,404.90

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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.