Home / 2,178,382.39-3,006,125.01-1,211,491.87

Finding the Fourth Proportional to 2,178,382.39, 3,006,125.01 and 1,211,491.87

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Solution

The fourth proportional to 2,178,382.39, 3,006,125.01 and 1,211,491.87 is: 1,671,835.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178,382.39 : 3,006,125.01 = 1,211,491.87 : x
  2. Step 2: Convert to fraction form
    2,178,382.39/3,006,125.01 = 1,211,491.87/x
  3. Step 3: Cross multiply
    2,178,382.39x = 3,006,125.01 × 1,211,491.87
  4. Step 4: Simplify right side
    2,178,382.39x = 3,641,896,009,818.67
  5. Step 5: Solve for x
    x = 3,641,896,009,818.67/2,178,382.39
  6. Step 6: Final answer
    x = 1,671,835.04

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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.