Home / 21,384,009.60-32,076,014.40-8,613,679.20

Finding the Fourth Proportional to 21,384,009.60, 32,076,014.40 and 8,613,679.20

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Solution

The fourth proportional to 21,384,009.60, 32,076,014.40 and 8,613,679.20 is: 12,920,518.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,384,009.60 : 32,076,014.40 = 8,613,679.20 : x
  2. Step 2: Convert to fraction form
    21,384,009.60/32,076,014.40 = 8,613,679.20/x
  3. Step 3: Cross multiply
    21,384,009.60x = 32,076,014.40 × 8,613,679.20
  4. Step 4: Simplify right side
    21,384,009.60x = 276,292,498,056,180.44
  5. Step 5: Solve for x
    x = 276,292,498,056,180.44/21,384,009.60
  6. Step 6: Final answer
    x = 12,920,518.80

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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.