Home / 278,837,096.49-384,800,141.03-155,077,828.29

Finding the Fourth Proportional to 278,837,096.49, 384,800,141.03 and 155,077,828.29

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Solution

The fourth proportional to 278,837,096.49, 384,800,141.03 and 155,077,828.29 is: 214,010,154.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,837,096.49 : 384,800,141.03 = 155,077,828.29 : x
  2. Step 2: Convert to fraction form
    278,837,096.49/384,800,141.03 = 155,077,828.29/x
  3. Step 3: Cross multiply
    278,837,096.49x = 384,800,141.03 × 155,077,828.29
  4. Step 4: Simplify right side
    278,837,096.49x = 59,673,970,195,842,728
  5. Step 5: Solve for x
    x = 59,673,970,195,842,728/278,837,096.49
  6. Step 6: Final answer
    x = 214,010,154.84

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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.