Home / 515,492,408.70-773,661,627.45-511,461,330.30

Finding the Fourth Proportional to 515,492,408.70, 773,661,627.45 and 511,461,330.30

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Solution

The fourth proportional to 515,492,408.70, 773,661,627.45 and 511,461,330.30 is: 767,611,701.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,492,408.70 : 773,661,627.45 = 511,461,330.30 : x
  2. Step 2: Convert to fraction form
    515,492,408.70/773,661,627.45 = 511,461,330.30/x
  3. Step 3: Cross multiply
    515,492,408.70x = 773,661,627.45 × 511,461,330.30
  4. Step 4: Simplify right side
    515,492,408.70x = 395,698,005,177,640,000
  5. Step 5: Solve for x
    x = 395,698,005,177,640,000/515,492,408.70
  6. Step 6: Final answer
    x = 767,611,701.94

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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.