Home / 4,280,900.91-6,421,700.81-2,149,889.07

Finding the Fourth Proportional to 4,280,900.91, 6,421,700.81 and 2,149,889.07

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Solution

The fourth proportional to 4,280,900.91, 6,421,700.81 and 2,149,889.07 is: 3,225,009.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280,900.91 : 6,421,700.81 = 2,149,889.07 : x
  2. Step 2: Convert to fraction form
    4,280,900.91/6,421,700.81 = 2,149,889.07/x
  3. Step 3: Cross multiply
    4,280,900.91x = 6,421,700.81 × 2,149,889.07
  4. Step 4: Simplify right side
    4,280,900.91x = 13,805,944,371,479.70
  5. Step 5: Solve for x
    x = 13,805,944,371,479.70/4,280,900.91
  6. Step 6: Final answer
    x = 3,225,009.10

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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.