Home / 12,485,742.77-18,728,638.23-4,813,000.79

Finding the Fourth Proportional to 12,485,742.77, 18,728,638.23 and 4,813,000.79

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Solution

The fourth proportional to 12,485,742.77, 18,728,638.23 and 4,813,000.79 is: 7,219,510.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,485,742.77 : 18,728,638.23 = 4,813,000.79 : x
  2. Step 2: Convert to fraction form
    12,485,742.77/18,728,638.23 = 4,813,000.79/x
  3. Step 3: Cross multiply
    12,485,742.77x = 18,728,638.23 × 4,813,000.79
  4. Step 4: Simplify right side
    12,485,742.77x = 90,140,950,643,435.81
  5. Step 5: Solve for x
    x = 90,140,950,643,435.81/12,485,742.77
  6. Step 6: Final answer
    x = 7,219,510.47

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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.