Home / 13,166,056.70-18,161,839.59-7,658,811.90

Finding the Fourth Proportional to 13,166,056.70, 18,161,839.59 and 7,658,811.90

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Solution

The fourth proportional to 13,166,056.70, 18,161,839.59 and 7,658,811.90 is: 10,564,903.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,166,056.70 : 18,161,839.59 = 7,658,811.90 : x
  2. Step 2: Convert to fraction form
    13,166,056.70/18,161,839.59 = 7,658,811.90/x
  3. Step 3: Cross multiply
    13,166,056.70x = 18,161,839.59 × 7,658,811.90
  4. Step 4: Simplify right side
    13,166,056.70x = 139,098,113,177,783.12
  5. Step 5: Solve for x
    x = 139,098,113,177,783.12/13,166,056.70
  6. Step 6: Final answer
    x = 10,564,903.09

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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.