Home / 13,438,492.20-20,157,738.30-7,370,879.40

Finding the Fourth Proportional to 13,438,492.20, 20,157,738.30 and 7,370,879.40

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Solution

The fourth proportional to 13,438,492.20, 20,157,738.30 and 7,370,879.40 is: 11,056,319.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,438,492.20 : 20,157,738.30 = 7,370,879.40 : x
  2. Step 2: Convert to fraction form
    13,438,492.20/20,157,738.30 = 7,370,879.40/x
  3. Step 3: Cross multiply
    13,438,492.20x = 20,157,738.30 × 7,370,879.40
  4. Step 4: Simplify right side
    13,438,492.20x = 148,580,257,986,061.03
  5. Step 5: Solve for x
    x = 148,580,257,986,061.03/13,438,492.20
  6. Step 6: Final answer
    x = 11,056,319.10

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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.