Home / 13,373,638.41-18,457,570.53-7,493,670.21

Finding the Fourth Proportional to 13,373,638.41, 18,457,570.53 and 7,493,670.21

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Solution

The fourth proportional to 13,373,638.41, 18,457,570.53 and 7,493,670.21 is: 10,342,357.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,373,638.41 : 18,457,570.53 = 7,493,670.21 : x
  2. Step 2: Convert to fraction form
    13,373,638.41/18,457,570.53 = 7,493,670.21/x
  3. Step 3: Cross multiply
    13,373,638.41x = 18,457,570.53 × 7,493,670.21
  4. Step 4: Simplify right side
    13,373,638.41x = 138,314,946,429,634.92
  5. Step 5: Solve for x
    x = 138,314,946,429,634.92/13,373,638.41
  6. Step 6: Final answer
    x = 10,342,357.27

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1.5x scale

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.