Home / 13,191,623.20-19,786,778.70-6,802,521.40

Finding the Fourth Proportional to 13,191,623.20, 19,786,778.70 and 6,802,521.40

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Solution

The fourth proportional to 13,191,623.20, 19,786,778.70 and 6,802,521.40 is: 10,203,443.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,191,623.20 : 19,786,778.70 = 6,802,521.40 : x
  2. Step 2: Convert to fraction form
    13,191,623.20/19,786,778.70 = 6,802,521.40/x
  3. Step 3: Cross multiply
    13,191,623.20x = 19,786,778.70 × 6,802,521.40
  4. Step 4: Simplify right side
    13,191,623.20x = 134,599,985,543,814.19
  5. Step 5: Solve for x
    x = 134,599,985,543,814.19/13,191,623.20
  6. Step 6: Final answer
    x = 10,203,443.77

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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.