Home / 15,520,200.18-21,416,851.51-9,321,563.67

Finding the Fourth Proportional to 15,520,200.18, 21,416,851.51 and 9,321,563.67

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Solution

The fourth proportional to 15,520,200.18, 21,416,851.51 and 9,321,563.67 is: 12,863,142.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,520,200.18 : 21,416,851.51 = 9,321,563.67 : x
  2. Step 2: Convert to fraction form
    15,520,200.18/21,416,851.51 = 9,321,563.67/x
  3. Step 3: Cross multiply
    15,520,200.18x = 21,416,851.51 × 9,321,563.67
  4. Step 4: Simplify right side
    15,520,200.18x = 199,638,544,961,400.66
  5. Step 5: Solve for x
    x = 199,638,544,961,400.66/15,520,200.18
  6. Step 6: Final answer
    x = 12,863,142.40

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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.