Home / 12,047,418,820.35-16,607,915,915.76-8,419,178,018.97

Finding the Fourth Proportional to 12,047,418,820.35, 16,607,915,915.76 and 8,419,178,018.97

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Solution

The fourth proportional to 12,047,418,820.35, 16,607,915,915.76 and 8,419,178,018.97 is: 11,606,220,610.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,047,418,820.35 : 16,607,915,915.76 = 8,419,178,018.97 : x
  2. Step 2: Convert to fraction form
    12,047,418,820.35/16,607,915,915.76 = 8,419,178,018.97/x
  3. Step 3: Cross multiply
    12,047,418,820.35x = 16,607,915,915.76 × 8,419,178,018.97
  4. Step 4: Simplify right side
    12,047,418,820.35x = 139,825,000,618,868,621,312
  5. Step 5: Solve for x
    x = 139,825,000,618,868,621,312/12,047,418,820.35
  6. Step 6: Final answer
    x = 11,606,220,610.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.