Home / 13,180,638.72-19,767,139.20-3,958,239.36

Finding the Fourth Proportional to 13,180,638.72, 19,767,139.20 and 3,958,239.36

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Solution

The fourth proportional to 13,180,638.72, 19,767,139.20 and 3,958,239.36 is: 5,936,212.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,180,638.72 : 19,767,139.20 = 3,958,239.36 : x
  2. Step 2: Convert to fraction form
    13,180,638.72/19,767,139.20 = 3,958,239.36/x
  3. Step 3: Cross multiply
    13,180,638.72x = 19,767,139.20 × 3,958,239.36
  4. Step 4: Simplify right side
    13,180,638.72x = 78,243,068,416,038.91
  5. Step 5: Solve for x
    x = 78,243,068,416,038.91/13,180,638.72
  6. Step 6: Final answer
    x = 5,936,212.20

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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.