Home / 28,119,997.80-42,179,996.70-8,952,692.40

Finding the Fourth Proportional to 28,119,997.80, 42,179,996.70 and 8,952,692.40

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Solution

The fourth proportional to 28,119,997.80, 42,179,996.70 and 8,952,692.40 is: 13,429,038.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,119,997.80 : 42,179,996.70 = 8,952,692.40 : x
  2. Step 2: Convert to fraction form
    28,119,997.80/42,179,996.70 = 8,952,692.40/x
  3. Step 3: Cross multiply
    28,119,997.80x = 42,179,996.70 × 8,952,692.40
  4. Step 4: Simplify right side
    28,119,997.80x = 377,624,535,888,115.12
  5. Step 5: Solve for x
    x = 377,624,535,888,115.12/28,119,997.80
  6. Step 6: Final answer
    x = 13,429,038.60

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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.