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Finding the Fourth Proportional to 13,430,703.60, 20,134,245.60 and 8,041,498.20

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Solution

The fourth proportional to 13,430,703.60, 20,134,245.60 and 8,041,498.20 is: 12,055,176.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,430,703.60 : 20,134,245.60 = 8,041,498.20 : x
  2. Step 2: Convert to fraction form
    13,430,703.60/20,134,245.60 = 8,041,498.20/x
  3. Step 3: Cross multiply
    13,430,703.60x = 20,134,245.60 × 8,041,498.20
  4. Step 4: Simplify right side
    13,430,703.60x = 161,909,499,750,757.94
  5. Step 5: Solve for x
    x = 161,909,499,750,757.94/13,430,703.60
  6. Step 6: Final answer
    x = 12,055,176.30

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1.5x scale

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.