Home / 13,866,764.85-20,783,110.75-7,788,720.06

Finding the Fourth Proportional to 13,866,764.85, 20,783,110.75 and 7,788,720.06

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Solution

The fourth proportional to 13,866,764.85, 20,783,110.75 and 7,788,720.06 is: 11,673,510.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,866,764.85 : 20,783,110.75 = 7,788,720.06 : x
  2. Step 2: Convert to fraction form
    13,866,764.85/20,783,110.75 = 7,788,720.06/x
  3. Step 3: Cross multiply
    13,866,764.85x = 20,783,110.75 × 7,788,720.06
  4. Step 4: Simplify right side
    13,866,764.85x = 161,873,831,588,254.81
  5. Step 5: Solve for x
    x = 161,873,831,588,254.81/13,866,764.85
  6. Step 6: Final answer
    x = 11,673,510.97

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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.