Home / 13,823,999.70-20,735,999.55-7,777,382.10

Finding the Fourth Proportional to 13,823,999.70, 20,735,999.55 and 7,777,382.10

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Solution

The fourth proportional to 13,823,999.70, 20,735,999.55 and 7,777,382.10 is: 11,666,073.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,823,999.70 : 20,735,999.55 = 7,777,382.10 : x
  2. Step 2: Convert to fraction form
    13,823,999.70/20,735,999.55 = 7,777,382.10/x
  3. Step 3: Cross multiply
    13,823,999.70x = 20,735,999.55 × 7,777,382.10
  4. Step 4: Simplify right side
    13,823,999.70x = 161,271,791,725,778.06
  5. Step 5: Solve for x
    x = 161,271,791,725,778.06/13,823,999.70
  6. Step 6: Final answer
    x = 11,666,073.15

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1.5x scale

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.