Home / 12,112,850.40-16,711,512.48-7,764,334.50

Finding the Fourth Proportional to 12,112,850.40, 16,711,512.48 and 7,764,334.50

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Solution

The fourth proportional to 12,112,850.40, 16,711,512.48 and 7,764,334.50 is: 10,712,075.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,112,850.40 : 16,711,512.48 = 7,764,334.50 : x
  2. Step 2: Convert to fraction form
    12,112,850.40/16,711,512.48 = 7,764,334.50/x
  3. Step 3: Cross multiply
    12,112,850.40x = 16,711,512.48 × 7,764,334.50
  4. Step 4: Simplify right side
    12,112,850.40x = 129,753,772,895,644.56
  5. Step 5: Solve for x
    x = 129,753,772,895,644.56/12,112,850.40
  6. Step 6: Final answer
    x = 10,712,075.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.