Home / 13,203,145.96-18,220,329.09-7,401,928.91

Finding the Fourth Proportional to 13,203,145.96, 18,220,329.09 and 7,401,928.91

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Solution

The fourth proportional to 13,203,145.96, 18,220,329.09 and 7,401,928.91 is: 10,214,654.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,203,145.96 : 18,220,329.09 = 7,401,928.91 : x
  2. Step 2: Convert to fraction form
    13,203,145.96/18,220,329.09 = 7,401,928.91/x
  3. Step 3: Cross multiply
    13,203,145.96x = 18,220,329.09 × 7,401,928.91
  4. Step 4: Simplify right side
    13,203,145.96x = 134,865,580,549,883.34
  5. Step 5: Solve for x
    x = 134,865,580,549,883.34/13,203,145.96
  6. Step 6: Final answer
    x = 10,214,654.98

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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.