Home / 315,045,399.80-434,769,611.32-173,916,285.94

Finding the Fourth Proportional to 315,045,399.80, 434,769,611.32 and 173,916,285.94

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Solution

The fourth proportional to 315,045,399.80, 434,769,611.32 and 173,916,285.94 is: 240,008,316.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,045,399.80 : 434,769,611.32 = 173,916,285.94 : x
  2. Step 2: Convert to fraction form
    315,045,399.80/434,769,611.32 = 173,916,285.94/x
  3. Step 3: Cross multiply
    315,045,399.80x = 434,769,611.32 × 173,916,285.94
  4. Step 4: Simplify right side
    315,045,399.80x = 75,613,516,040,351,776
  5. Step 5: Solve for x
    x = 75,613,516,040,351,776/315,045,399.80
  6. Step 6: Final answer
    x = 240,008,316.54

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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.