Home / 12,427,628-18,642,106.30-3,908,628.77

Finding the Fourth Proportional to 12,427,628, 18,642,106.30 and 3,908,628.77

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Solution

The fourth proportional to 12,427,628, 18,642,106.30 and 3,908,628.77 is: 5,863,152.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,427,628 : 18,642,106.30 = 3,908,628.77 : x
  2. Step 2: Convert to fraction form
    12,427,628/18,642,106.30 = 3,908,628.77/x
  3. Step 3: Cross multiply
    12,427,628x = 18,642,106.30 × 3,908,628.77
  4. Step 4: Simplify right side
    12,427,628x = 72,865,073,027,349.81
  5. Step 5: Solve for x
    x = 72,865,073,027,349.81/12,427,628
  6. Step 6: Final answer
    x = 5,863,152.09

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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.