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Finding the Fourth Proportional to 65,102,716.80, 97,670,404.80 and 28,718,035.20

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Solution

The fourth proportional to 65,102,716.80, 97,670,404.80 and 28,718,035.20 is: 43,084,256.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,102,716.80 : 97,670,404.80 = 28,718,035.20 : x
  2. Step 2: Convert to fraction form
    65,102,716.80/97,670,404.80 = 28,718,035.20/x
  3. Step 3: Cross multiply
    65,102,716.80x = 97,670,404.80 × 28,718,035.20
  4. Step 4: Simplify right side
    65,102,716.80x = 2,804,902,123,044,649
  5. Step 5: Solve for x
    x = 2,804,902,123,044,649/65,102,716.80
  6. Step 6: Final answer
    x = 43,084,256.09

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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.