Home / 7,679,692.80-11,516,428.80-2,628,403.20

Finding the Fourth Proportional to 7,679,692.80, 11,516,428.80 and 2,628,403.20

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Solution

The fourth proportional to 7,679,692.80, 11,516,428.80 and 2,628,403.20 is: 3,941,540.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,679,692.80 : 11,516,428.80 = 2,628,403.20 : x
  2. Step 2: Convert to fraction form
    7,679,692.80/11,516,428.80 = 2,628,403.20/x
  3. Step 3: Cross multiply
    7,679,692.80x = 11,516,428.80 × 2,628,403.20
  4. Step 4: Simplify right side
    7,679,692.80x = 30,269,818,310,492.16
  5. Step 5: Solve for x
    x = 30,269,818,310,492.16/7,679,692.80
  6. Step 6: Final answer
    x = 3,941,540.25

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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.