Home / 12,991,246.80-19,486,870.20-4,015,784.40

Finding the Fourth Proportional to 12,991,246.80, 19,486,870.20 and 4,015,784.40

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Solution

The fourth proportional to 12,991,246.80, 19,486,870.20 and 4,015,784.40 is: 6,023,676.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,991,246.80 : 19,486,870.20 = 4,015,784.40 : x
  2. Step 2: Convert to fraction form
    12,991,246.80/19,486,870.20 = 4,015,784.40/x
  3. Step 3: Cross multiply
    12,991,246.80x = 19,486,870.20 × 4,015,784.40
  4. Step 4: Simplify right side
    12,991,246.80x = 78,255,069,353,984.88
  5. Step 5: Solve for x
    x = 78,255,069,353,984.88/12,991,246.80
  6. Step 6: Final answer
    x = 6,023,676.60

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Similar ratio
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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.