Home / 28,146,005.35-42,222,157.30-8,972,313.91

Finding the Fourth Proportional to 28,146,005.35, 42,222,157.30 and 8,972,313.91

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Solution

The fourth proportional to 28,146,005.35, 42,222,157.30 and 8,972,313.91 is: 13,459,474.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,146,005.35 : 42,222,157.30 = 8,972,313.91 : x
  2. Step 2: Convert to fraction form
    28,146,005.35/42,222,157.30 = 8,972,313.91/x
  3. Step 3: Cross multiply
    28,146,005.35x = 42,222,157.30 × 8,972,313.91
  4. Step 4: Simplify right side
    28,146,005.35x = 378,830,449,158,658.12
  5. Step 5: Solve for x
    x = 378,830,449,158,658.12/28,146,005.35
  6. Step 6: Final answer
    x = 13,459,474.78

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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.