Home / 13,490,621.64-18,618,858.72-7,611,462.63

Finding the Fourth Proportional to 13,490,621.64, 18,618,858.72 and 7,611,462.63

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Solution

The fourth proportional to 13,490,621.64, 18,618,858.72 and 7,611,462.63 is: 10,504,834.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,490,621.64 : 18,618,858.72 = 7,611,462.63 : x
  2. Step 2: Convert to fraction form
    13,490,621.64/18,618,858.72 = 7,611,462.63/x
  3. Step 3: Cross multiply
    13,490,621.64x = 18,618,858.72 × 7,611,462.63
  4. Step 4: Simplify right side
    13,490,621.64x = 141,716,747,360,529.62
  5. Step 5: Solve for x
    x = 141,716,747,360,529.62/13,490,621.64
  6. Step 6: Final answer
    x = 10,504,834.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.