Home / 315,336,489.44-432,003,769.57-303,546,790.40

Finding the Fourth Proportional to 315,336,489.44, 432,003,769.57 and 303,546,790.40

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Solution

The fourth proportional to 315,336,489.44, 432,003,769.57 and 303,546,790.40 is: 415,852,151.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,336,489.44 : 432,003,769.57 = 303,546,790.40 : x
  2. Step 2: Convert to fraction form
    315,336,489.44/432,003,769.57 = 303,546,790.40/x
  3. Step 3: Cross multiply
    315,336,489.44x = 432,003,769.57 × 303,546,790.40
  4. Step 4: Simplify right side
    315,336,489.44x = 131,133,357,693,674,672
  5. Step 5: Solve for x
    x = 131,133,357,693,674,672/315,336,489.44
  6. Step 6: Final answer
    x = 415,852,151.86

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.