Home / 13,662,503.21-20,490,731.63-3,945,006.79

Finding the Fourth Proportional to 13,662,503.21, 20,490,731.63 and 3,945,006.79

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Solution

The fourth proportional to 13,662,503.21, 20,490,731.63 and 3,945,006.79 is: 5,916,637.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,662,503.21 : 20,490,731.63 = 3,945,006.79 : x
  2. Step 2: Convert to fraction form
    13,662,503.21/20,490,731.63 = 3,945,006.79/x
  3. Step 3: Cross multiply
    13,662,503.21x = 20,490,731.63 × 3,945,006.79
  4. Step 4: Simplify right side
    13,662,503.21x = 80,836,075,341,465.91
  5. Step 5: Solve for x
    x = 80,836,075,341,465.91/13,662,503.21
  6. Step 6: Final answer
    x = 5,916,637.24

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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.