Home / 13,611,818.79-18,784,087.53-7,416,939

Finding the Fourth Proportional to 13,611,818.79, 18,784,087.53 and 7,416,939

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Solution

The fourth proportional to 13,611,818.79, 18,784,087.53 and 7,416,939 is: 10,235,254.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,611,818.79 : 18,784,087.53 = 7,416,939 : x
  2. Step 2: Convert to fraction form
    13,611,818.79/18,784,087.53 = 7,416,939/x
  3. Step 3: Cross multiply
    13,611,818.79x = 18,784,087.53 × 7,416,939
  4. Step 4: Simplify right side
    13,611,818.79x = 139,320,431,380,670.67
  5. Step 5: Solve for x
    x = 139,320,431,380,670.67/13,611,818.79
  6. Step 6: Final answer
    x = 10,235,254.64

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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.