Home / 85,482,880-128,222,950.56-27,189,711.52

Finding the Fourth Proportional to 85,482,880, 128,222,950.56 and 27,189,711.52

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Solution

The fourth proportional to 85,482,880, 128,222,950.56 and 27,189,711.52 is: 40,784,131.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,482,880 : 128,222,950.56 = 27,189,711.52 : x
  2. Step 2: Convert to fraction form
    85,482,880/128,222,950.56 = 27,189,711.52/x
  3. Step 3: Cross multiply
    85,482,880x = 128,222,950.56 × 27,189,711.52
  4. Step 4: Simplify right side
    85,482,880x = 3,486,345,035,969,622.50
  5. Step 5: Solve for x
    x = 3,486,345,035,969,622.50/85,482,880
  6. Step 6: Final answer
    x = 40,784,131.70

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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.