Home / 478,327,815.60-660,092,381.64-258,311,222.16

Finding the Fourth Proportional to 478,327,815.60, 660,092,381.64 and 258,311,222.16

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Solution

The fourth proportional to 478,327,815.60, 660,092,381.64 and 258,311,222.16 is: 356,469,484.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,327,815.60 : 660,092,381.64 = 258,311,222.16 : x
  2. Step 2: Convert to fraction form
    478,327,815.60/660,092,381.64 = 258,311,222.16/x
  3. Step 3: Cross multiply
    478,327,815.60x = 660,092,381.64 × 258,311,222.16
  4. Step 4: Simplify right side
    478,327,815.60x = 170,509,269,839,933,536
  5. Step 5: Solve for x
    x = 170,509,269,839,933,536/478,327,815.60
  6. Step 6: Final answer
    x = 356,469,484.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.