Home / 85,066,091.10-127,599,136.65-80,587,115.10

Finding the Fourth Proportional to 85,066,091.10, 127,599,136.65 and 80,587,115.10

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Solution

The fourth proportional to 85,066,091.10, 127,599,136.65 and 80,587,115.10 is: 120,880,672.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,066,091.10 : 127,599,136.65 = 80,587,115.10 : x
  2. Step 2: Convert to fraction form
    85,066,091.10/127,599,136.65 = 80,587,115.10/x
  3. Step 3: Cross multiply
    85,066,091.10x = 127,599,136.65 × 80,587,115.10
  4. Step 4: Simplify right side
    85,066,091.10x = 10,282,846,311,874,178
  5. Step 5: Solve for x
    x = 10,282,846,311,874,178/85,066,091.10
  6. Step 6: Final answer
    x = 120,880,672.65

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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.