Home / 311,690,966,563.74-430,178,691,855.78-174,522,632,477.28

Finding the Fourth Proportional to 311,690,966,563.74, 430,178,691,855.78 and 174,522,632,477.28

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Solution

The fourth proportional to 311,690,966,563.74, 430,178,691,855.78 and 174,522,632,477.28 is: 240,866,517,775.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,690,966,563.74 : 430,178,691,855.78 = 174,522,632,477.28 : x
  2. Step 2: Convert to fraction form
    311,690,966,563.74/430,178,691,855.78 = 174,522,632,477.28/x
  3. Step 3: Cross multiply
    311,690,966,563.74x = 430,178,691,855.78 × 174,522,632,477.28
  4. Step 4: Simplify right side
    311,690,966,563.74x = 75,075,917,738,303,381,569,536
  5. Step 5: Solve for x
    x = 75,075,917,738,303,381,569,536/311,690,966,563.74
  6. Step 6: Final answer
    x = 240,866,517,775.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.