Home / 7,918,004.80-11,877,007.20-3,936,692.80

Finding the Fourth Proportional to 7,918,004.80, 11,877,007.20 and 3,936,692.80

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Solution

The fourth proportional to 7,918,004.80, 11,877,007.20 and 3,936,692.80 is: 5,905,039.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918,004.80 : 11,877,007.20 = 3,936,692.80 : x
  2. Step 2: Convert to fraction form
    7,918,004.80/11,877,007.20 = 3,936,692.80/x
  3. Step 3: Cross multiply
    7,918,004.80x = 11,877,007.20 × 3,936,692.80
  4. Step 4: Simplify right side
    7,918,004.80x = 46,756,128,729,788.16
  5. Step 5: Solve for x
    x = 46,756,128,729,788.16/7,918,004.80
  6. Step 6: Final answer
    x = 5,905,039.20

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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.