Home / 12,485,742.89-18,728,638.42-4,813,000.92

Finding the Fourth Proportional to 12,485,742.89, 18,728,638.42 and 4,813,000.92

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Solution

The fourth proportional to 12,485,742.89, 18,728,638.42 and 4,813,000.92 is: 7,219,510.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,485,742.89 : 18,728,638.42 = 4,813,000.92 : x
  2. Step 2: Convert to fraction form
    12,485,742.89/18,728,638.42 = 4,813,000.92/x
  3. Step 3: Cross multiply
    12,485,742.89x = 18,728,638.42 × 4,813,000.92
  4. Step 4: Simplify right side
    12,485,742.89x = 90,140,953,945,807.36
  5. Step 5: Solve for x
    x = 90,140,953,945,807.36/12,485,742.89
  6. Step 6: Final answer
    x = 7,219,510.66

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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.