Home / 85,065,416.10-127,598,124.15-80,586,440.10

Finding the Fourth Proportional to 85,065,416.10, 127,598,124.15 and 80,586,440.10

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Solution

The fourth proportional to 85,065,416.10, 127,598,124.15 and 80,586,440.10 is: 120,879,660.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,065,416.10 : 127,598,124.15 = 80,586,440.10 : x
  2. Step 2: Convert to fraction form
    85,065,416.10/127,598,124.15 = 80,586,440.10/x
  3. Step 3: Cross multiply
    85,065,416.10x = 127,598,124.15 × 80,586,440.10
  4. Step 4: Simplify right side
    85,065,416.10x = 10,282,678,588,686,338
  5. Step 5: Solve for x
    x = 10,282,678,588,686,338/85,065,416.10
  6. Step 6: Final answer
    x = 120,879,660.15

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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.