Home / 18,714,999.40-28,025,259.90-12,290,468.20

Finding the Fourth Proportional to 18,714,999.40, 28,025,259.90 and 12,290,468.20

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Solution

The fourth proportional to 18,714,999.40, 28,025,259.90 and 12,290,468.20 is: 18,404,679.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,714,999.40 : 28,025,259.90 = 12,290,468.20 : x
  2. Step 2: Convert to fraction form
    18,714,999.40/28,025,259.90 = 12,290,468.20/x
  3. Step 3: Cross multiply
    18,714,999.40x = 28,025,259.90 × 12,290,468.20
  4. Step 4: Simplify right side
    18,714,999.40x = 344,443,565,597,685.12
  5. Step 5: Solve for x
    x = 344,443,565,597,685.12/18,714,999.40
  6. Step 6: Final answer
    x = 18,404,679.49

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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.