Home / 13,390,346.46-18,461,571.05-8,672,405.88

Finding the Fourth Proportional to 13,390,346.46, 18,461,571.05 and 8,672,405.88

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Solution

The fourth proportional to 13,390,346.46, 18,461,571.05 and 8,672,405.88 is: 11,956,840.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,390,346.46 : 18,461,571.05 = 8,672,405.88 : x
  2. Step 2: Convert to fraction form
    13,390,346.46/18,461,571.05 = 8,672,405.88/x
  3. Step 3: Cross multiply
    13,390,346.46x = 18,461,571.05 × 8,672,405.88
  4. Step 4: Simplify right side
    13,390,346.46x = 160,106,237,349,738.78
  5. Step 5: Solve for x
    x = 160,106,237,349,738.78/13,390,346.46
  6. Step 6: Final answer
    x = 11,956,840.54

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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.