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Finding the Fourth Proportional to 664,001,487.60, 994,407,908.40 and 356,616,013.20

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Solution

The fourth proportional to 664,001,487.60, 994,407,908.40 and 356,616,013.20 is: 534,067,754.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,001,487.60 : 994,407,908.40 = 356,616,013.20 : x
  2. Step 2: Convert to fraction form
    664,001,487.60/994,407,908.40 = 356,616,013.20/x
  3. Step 3: Cross multiply
    664,001,487.60x = 994,407,908.40 × 356,616,013.20
  4. Step 4: Simplify right side
    664,001,487.60x = 354,621,783,788,158,784
  5. Step 5: Solve for x
    x = 354,621,783,788,158,784/664,001,487.60
  6. Step 6: Final answer
    x = 534,067,754.98

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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.