Home / 3,208,257.60-4,812,386.40-3,186,139.20

Finding the Fourth Proportional to 3,208,257.60, 4,812,386.40 and 3,186,139.20

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Solution

The fourth proportional to 3,208,257.60, 4,812,386.40 and 3,186,139.20 is: 4,779,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208,257.60 : 4,812,386.40 = 3,186,139.20 : x
  2. Step 2: Convert to fraction form
    3,208,257.60/4,812,386.40 = 3,186,139.20/x
  3. Step 3: Cross multiply
    3,208,257.60x = 4,812,386.40 × 3,186,139.20
  4. Step 4: Simplify right side
    3,208,257.60x = 15,332,932,954,586.88
  5. Step 5: Solve for x
    x = 15,332,932,954,586.88/3,208,257.60
  6. Step 6: Final answer
    x = 4,779,208.80

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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.