Home / 320,849,191,819.70-481,273,787,729.55-172,079,724,043.70

Finding the Fourth Proportional to 320,849,191,819.70, 481,273,787,729.55 and 172,079,724,043.70

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Solution

The fourth proportional to 320,849,191,819.70, 481,273,787,729.55 and 172,079,724,043.70 is: 258,119,586,065.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,849,191,819.70 : 481,273,787,729.55 = 172,079,724,043.70 : x
  2. Step 2: Convert to fraction form
    320,849,191,819.70/481,273,787,729.55 = 172,079,724,043.70/x
  3. Step 3: Cross multiply
    320,849,191,819.70x = 481,273,787,729.55 × 172,079,724,043.70
  4. Step 4: Simplify right side
    320,849,191,819.70x = 82,817,460,581,967,211,790,336
  5. Step 5: Solve for x
    x = 82,817,460,581,967,211,790,336/320,849,191,819.70
  6. Step 6: Final answer
    x = 258,119,586,065.55

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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.