Home / 3,120,144.40-4,680,216.60-2,910,192.40

Finding the Fourth Proportional to 3,120,144.40, 4,680,216.60 and 2,910,192.40

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Solution

The fourth proportional to 3,120,144.40, 4,680,216.60 and 2,910,192.40 is: 4,365,288.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,144.40 : 4,680,216.60 = 2,910,192.40 : x
  2. Step 2: Convert to fraction form
    3,120,144.40/4,680,216.60 = 2,910,192.40/x
  3. Step 3: Cross multiply
    3,120,144.40x = 4,680,216.60 × 2,910,192.40
  4. Step 4: Simplify right side
    3,120,144.40x = 13,620,330,779,673.84
  5. Step 5: Solve for x
    x = 13,620,330,779,673.84/3,120,144.40
  6. Step 6: Final answer
    x = 4,365,288.60

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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.