Home / 144,559,423.56-199,494,322.70-78,479,869.49

Finding the Fourth Proportional to 144,559,423.56, 199,494,322.70 and 78,479,869.49

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Solution

The fourth proportional to 144,559,423.56, 199,494,322.70 and 78,479,869.49 is: 108,303,478.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,559,423.56 : 199,494,322.70 = 78,479,869.49 : x
  2. Step 2: Convert to fraction form
    144,559,423.56/199,494,322.70 = 78,479,869.49/x
  3. Step 3: Cross multiply
    144,559,423.56x = 199,494,322.70 × 78,479,869.49
  4. Step 4: Simplify right side
    144,559,423.56x = 15,656,288,409,491,942
  5. Step 5: Solve for x
    x = 15,656,288,409,491,942/144,559,423.56
  6. Step 6: Final answer
    x = 108,303,478.42

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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.