Home / 290,167,939.20-434,685,038.40-174,809,812.80

Finding the Fourth Proportional to 290,167,939.20, 434,685,038.40 and 174,809,812.80

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Solution

The fourth proportional to 290,167,939.20, 434,685,038.40 and 174,809,812.80 is: 261,873,211.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,167,939.20 : 434,685,038.40 = 174,809,812.80 : x
  2. Step 2: Convert to fraction form
    290,167,939.20/434,685,038.40 = 174,809,812.80/x
  3. Step 3: Cross multiply
    290,167,939.20x = 434,685,038.40 × 174,809,812.80
  4. Step 4: Simplify right side
    290,167,939.20x = 75,987,210,189,664,816
  5. Step 5: Solve for x
    x = 75,987,210,189,664,816/290,167,939.20
  6. Step 6: Final answer
    x = 261,873,211.77

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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.