Home / 345,001,514.64-515,930,431.32-257,624,391.12

Finding the Fourth Proportional to 345,001,514.64, 515,930,431.32 and 257,624,391.12

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Solution

The fourth proportional to 345,001,514.64, 515,930,431.32 and 257,624,391.12 is: 385,262,839.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,001,514.64 : 515,930,431.32 = 257,624,391.12 : x
  2. Step 2: Convert to fraction form
    345,001,514.64/515,930,431.32 = 257,624,391.12/x
  3. Step 3: Cross multiply
    345,001,514.64x = 515,930,431.32 × 257,624,391.12
  4. Step 4: Simplify right side
    345,001,514.64x = 132,916,263,229,093,984
  5. Step 5: Solve for x
    x = 132,916,263,229,093,984/345,001,514.64
  6. Step 6: Final answer
    x = 385,262,839.69

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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.