Home / 290,331,618.80-435,497,428.20-268,160,687.60

Finding the Fourth Proportional to 290,331,618.80, 435,497,428.20 and 268,160,687.60

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Solution

The fourth proportional to 290,331,618.80, 435,497,428.20 and 268,160,687.60 is: 402,241,031.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,331,618.80 : 435,497,428.20 = 268,160,687.60 : x
  2. Step 2: Convert to fraction form
    290,331,618.80/435,497,428.20 = 268,160,687.60/x
  3. Step 3: Cross multiply
    290,331,618.80x = 435,497,428.20 × 268,160,687.60
  4. Step 4: Simplify right side
    290,331,618.80x = 116,783,289,794,143,632
  5. Step 5: Solve for x
    x = 116,783,289,794,143,632/290,331,618.80
  6. Step 6: Final answer
    x = 402,241,031.40

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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.