Home / 13,153,014.30-19,729,521.45-12,145,244.70

Finding the Fourth Proportional to 13,153,014.30, 19,729,521.45 and 12,145,244.70

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Solution

The fourth proportional to 13,153,014.30, 19,729,521.45 and 12,145,244.70 is: 18,217,867.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,153,014.30 : 19,729,521.45 = 12,145,244.70 : x
  2. Step 2: Convert to fraction form
    13,153,014.30/19,729,521.45 = 12,145,244.70/x
  3. Step 3: Cross multiply
    13,153,014.30x = 19,729,521.45 × 12,145,244.70
  4. Step 4: Simplify right side
    13,153,014.30x = 239,619,865,824,148.78
  5. Step 5: Solve for x
    x = 239,619,865,824,148.78/13,153,014.30
  6. Step 6: Final answer
    x = 18,217,867.05

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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.