Home / 13,392,031.20-20,088,046.80-8,605,125.60

Finding the Fourth Proportional to 13,392,031.20, 20,088,046.80 and 8,605,125.60

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Solution

The fourth proportional to 13,392,031.20, 20,088,046.80 and 8,605,125.60 is: 12,907,688.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,392,031.20 : 20,088,046.80 = 8,605,125.60 : x
  2. Step 2: Convert to fraction form
    13,392,031.20/20,088,046.80 = 8,605,125.60/x
  3. Step 3: Cross multiply
    13,392,031.20x = 20,088,046.80 × 8,605,125.60
  4. Step 4: Simplify right side
    13,392,031.20x = 172,860,165,772,678.09
  5. Step 5: Solve for x
    x = 172,860,165,772,678.09/13,392,031.20
  6. Step 6: Final answer
    x = 12,907,688.40

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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.