Home / 89,019,021.60-133,528,532.40-82,783,447.20

Finding the Fourth Proportional to 89,019,021.60, 133,528,532.40 and 82,783,447.20

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Solution

The fourth proportional to 89,019,021.60, 133,528,532.40 and 82,783,447.20 is: 124,175,170.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,019,021.60 : 133,528,532.40 = 82,783,447.20 : x
  2. Step 2: Convert to fraction form
    89,019,021.60/133,528,532.40 = 82,783,447.20/x
  3. Step 3: Cross multiply
    89,019,021.60x = 133,528,532.40 × 82,783,447.20
  4. Step 4: Simplify right side
    89,019,021.60x = 11,053,952,211,628,890
  5. Step 5: Solve for x
    x = 11,053,952,211,628,890/89,019,021.60
  6. Step 6: Final answer
    x = 124,175,170.80

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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.