Home / 12,378,045.90-18,531,639.45-10,960,869.90

Finding the Fourth Proportional to 12,378,045.90, 18,531,639.45 and 10,960,869.90

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Solution

The fourth proportional to 12,378,045.90, 18,531,639.45 and 10,960,869.90 is: 16,409,931.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,378,045.90 : 18,531,639.45 = 10,960,869.90 : x
  2. Step 2: Convert to fraction form
    12,378,045.90/18,531,639.45 = 10,960,869.90/x
  3. Step 3: Cross multiply
    12,378,045.90x = 18,531,639.45 × 10,960,869.90
  4. Step 4: Simplify right side
    12,378,045.90x = 203,122,889,045,157.56
  5. Step 5: Solve for x
    x = 203,122,889,045,157.56/12,378,045.90
  6. Step 6: Final answer
    x = 16,409,931.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.