Home / 85,609,882,529.60-128,414,823,794.40-66,018,841,505.60

Finding the Fourth Proportional to 85,609,882,529.60, 128,414,823,794.40 and 66,018,841,505.60

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Solution

The fourth proportional to 85,609,882,529.60, 128,414,823,794.40 and 66,018,841,505.60 is: 99,028,262,258.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,609,882,529.60 : 128,414,823,794.40 = 66,018,841,505.60 : x
  2. Step 2: Convert to fraction form
    85,609,882,529.60/128,414,823,794.40 = 66,018,841,505.60/x
  3. Step 3: Cross multiply
    85,609,882,529.60x = 128,414,823,794.40 × 66,018,841,505.60
  4. Step 4: Simplify right side
    85,609,882,529.60x = 8,477,797,899,052,044,517,376
  5. Step 5: Solve for x
    x = 8,477,797,899,052,044,517,376/85,609,882,529.60
  6. Step 6: Final answer
    x = 99,028,262,258.40

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Double scale
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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.