Home / 42,595,855.20-63,850,237.20-20,997,237.60

Finding the Fourth Proportional to 42,595,855.20, 63,850,237.20 and 20,997,237.60

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Solution

The fourth proportional to 42,595,855.20, 63,850,237.20 and 20,997,237.60 is: 31,474,390.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,595,855.20 : 63,850,237.20 = 20,997,237.60 : x
  2. Step 2: Convert to fraction form
    42,595,855.20/63,850,237.20 = 20,997,237.60/x
  3. Step 3: Cross multiply
    42,595,855.20x = 63,850,237.20 × 20,997,237.60
  4. Step 4: Simplify right side
    42,595,855.20x = 1,340,678,601,304,759
  5. Step 5: Solve for x
    x = 1,340,678,601,304,759/42,595,855.20
  6. Step 6: Final answer
    x = 31,474,390.99

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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.