Home / 1,259,638,754.76-1,889,242,785.54-339,299,859.96

Finding the Fourth Proportional to 1,259,638,754.76, 1,889,242,785.54 and 339,299,859.96

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Solution

The fourth proportional to 1,259,638,754.76, 1,889,242,785.54 and 339,299,859.96 is: 508,891,783.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,638,754.76 : 1,889,242,785.54 = 339,299,859.96 : x
  2. Step 2: Convert to fraction form
    1,259,638,754.76/1,889,242,785.54 = 339,299,859.96/x
  3. Step 3: Cross multiply
    1,259,638,754.76x = 1,889,242,785.54 × 339,299,859.96
  4. Step 4: Simplify right side
    1,259,638,754.76x = 641,019,812,564,162,304
  5. Step 5: Solve for x
    x = 641,019,812,564,162,304/1,259,638,754.76
  6. Step 6: Final answer
    x = 508,891,783.57

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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.