Home / 12,990,350.40-19,485,525.60-4,017,652.80

Finding the Fourth Proportional to 12,990,350.40, 19,485,525.60 and 4,017,652.80

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Solution

The fourth proportional to 12,990,350.40, 19,485,525.60 and 4,017,652.80 is: 6,026,479.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,990,350.40 : 19,485,525.60 = 4,017,652.80 : x
  2. Step 2: Convert to fraction form
    12,990,350.40/19,485,525.60 = 4,017,652.80/x
  3. Step 3: Cross multiply
    12,990,350.40x = 19,485,525.60 × 4,017,652.80
  4. Step 4: Simplify right side
    12,990,350.40x = 78,286,076,486,311.69
  5. Step 5: Solve for x
    x = 78,286,076,486,311.69/12,990,350.40
  6. Step 6: Final answer
    x = 6,026,479.20

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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.