Home / 99,391,029.16-148,892,592.04-77,428,573.03

Finding the Fourth Proportional to 99,391,029.16, 148,892,592.04 and 77,428,573.03

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Solution

The fourth proportional to 99,391,029.16, 148,892,592.04 and 77,428,573.03 is: 115,991,765.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,391,029.16 : 148,892,592.04 = 77,428,573.03 : x
  2. Step 2: Convert to fraction form
    99,391,029.16/148,892,592.04 = 77,428,573.03/x
  3. Step 3: Cross multiply
    99,391,029.16x = 148,892,592.04 × 77,428,573.03
  4. Step 4: Simplify right side
    99,391,029.16x = 11,528,540,936,395,136
  5. Step 5: Solve for x
    x = 11,528,540,936,395,136/99,391,029.16
  6. Step 6: Final answer
    x = 115,991,765.39

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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.