Home / 12,485,741.27-18,728,635.98-4,812,999.29

Finding the Fourth Proportional to 12,485,741.27, 18,728,635.98 and 4,812,999.29

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Solution

The fourth proportional to 12,485,741.27, 18,728,635.98 and 4,812,999.29 is: 7,219,508.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,485,741.27 : 18,728,635.98 = 4,812,999.29 : x
  2. Step 2: Convert to fraction form
    12,485,741.27/18,728,635.98 = 4,812,999.29/x
  3. Step 3: Cross multiply
    12,485,741.27x = 18,728,635.98 × 4,812,999.29
  4. Step 4: Simplify right side
    12,485,741.27x = 90,140,911,721,230.05
  5. Step 5: Solve for x
    x = 90,140,911,721,230.05/12,485,741.27
  6. Step 6: Final answer
    x = 7,219,508.22

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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.