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Finding the Fourth Proportional to 28,058,230.05, 42,088,978.03 and 7,865,046.69

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Solution

The fourth proportional to 28,058,230.05, 42,088,978.03 and 7,865,046.69 is: 11,798,027.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,058,230.05 : 42,088,978.03 = 7,865,046.69 : x
  2. Step 2: Convert to fraction form
    28,058,230.05/42,088,978.03 = 7,865,046.69/x
  3. Step 3: Cross multiply
    28,058,230.05x = 42,088,978.03 × 7,865,046.69
  4. Step 4: Simplify right side
    28,058,230.05x = 331,031,777,340,334.25
  5. Step 5: Solve for x
    x = 331,031,777,340,334.25/28,058,230.05
  6. Step 6: Final answer
    x = 11,798,027.77

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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.