Home / 7,152,043.40-10,728,065.10-3,113,091.80

Finding the Fourth Proportional to 7,152,043.40, 10,728,065.10 and 3,113,091.80

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Solution

The fourth proportional to 7,152,043.40, 10,728,065.10 and 3,113,091.80 is: 4,669,637.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,152,043.40 : 10,728,065.10 = 3,113,091.80 : x
  2. Step 2: Convert to fraction form
    7,152,043.40/10,728,065.10 = 3,113,091.80/x
  3. Step 3: Cross multiply
    7,152,043.40x = 10,728,065.10 × 3,113,091.80
  4. Step 4: Simplify right side
    7,152,043.40x = 33,397,451,492,676.18
  5. Step 5: Solve for x
    x = 33,397,451,492,676.18/7,152,043.40
  6. Step 6: Final answer
    x = 4,669,637.70

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Double scale
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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.