Home / 312,036,497.50-430,403,023.19-200,668,136.73

Finding the Fourth Proportional to 312,036,497.50, 430,403,023.19 and 200,668,136.73

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Solution

The fourth proportional to 312,036,497.50, 430,403,023.19 and 200,668,136.73 is: 276,788,687.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,036,497.50 : 430,403,023.19 = 200,668,136.73 : x
  2. Step 2: Convert to fraction form
    312,036,497.50/430,403,023.19 = 200,668,136.73/x
  3. Step 3: Cross multiply
    312,036,497.50x = 430,403,023.19 × 200,668,136.73
  4. Step 4: Simplify right side
    312,036,497.50x = 86,368,172,705,492,928
  5. Step 5: Solve for x
    x = 86,368,172,705,492,928/312,036,497.50
  6. Step 6: Final answer
    x = 276,788,687.85

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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.