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Finding the Fourth Proportional to 66,679,314.84, 100,018,972.38 and 43,954,897.68

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Solution

The fourth proportional to 66,679,314.84, 100,018,972.38 and 43,954,897.68 is: 65,932,346.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,679,314.84 : 100,018,972.38 = 43,954,897.68 : x
  2. Step 2: Convert to fraction form
    66,679,314.84/100,018,972.38 = 43,954,897.68/x
  3. Step 3: Cross multiply
    66,679,314.84x = 100,018,972.38 × 43,954,897.68
  4. Step 4: Simplify right side
    66,679,314.84x = 4,396,323,697,021,646
  5. Step 5: Solve for x
    x = 4,396,323,697,021,646/66,679,314.84
  6. Step 6: Final answer
    x = 65,932,346.60

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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.