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Finding the Fourth Proportional to 290,668,896.80, 436,003,345.20 and 290,668,896.80

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Solution

The fourth proportional to 290,668,896.80, 436,003,345.20 and 290,668,896.80 is: 436,003,345.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,668,896.80 : 436,003,345.20 = 290,668,896.80 : x
  2. Step 2: Convert to fraction form
    290,668,896.80/436,003,345.20 = 290,668,896.80/x
  3. Step 3: Cross multiply
    290,668,896.80x = 436,003,345.20 × 290,668,896.80
  4. Step 4: Simplify right side
    290,668,896.80x = 126,732,611,350,393,584
  5. Step 5: Solve for x
    x = 126,732,611,350,393,584/290,668,896.80
  6. Step 6: Final answer
    x = 436,003,345.20

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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.