Home / 398,883,112.84-546,467,315.78-383,966,738.88

Finding the Fourth Proportional to 398,883,112.84, 546,467,315.78 and 383,966,738.88

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Solution

The fourth proportional to 398,883,112.84, 546,467,315.78 and 383,966,738.88 is: 526,031,978.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,883,112.84 : 546,467,315.78 = 383,966,738.88 : x
  2. Step 2: Convert to fraction form
    398,883,112.84/546,467,315.78 = 383,966,738.88/x
  3. Step 3: Cross multiply
    398,883,112.84x = 546,467,315.78 × 383,966,738.88
  4. Step 4: Simplify right side
    398,883,112.84x = 209,825,273,144,553,760
  5. Step 5: Solve for x
    x = 209,825,273,144,553,760/398,883,112.84
  6. Step 6: Final answer
    x = 526,031,978.77

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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.