Home / 4,128,021.52-6,190,457.68-1,968,665.20

Finding the Fourth Proportional to 4,128,021.52, 6,190,457.68 and 1,968,665.20

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Solution

The fourth proportional to 4,128,021.52, 6,190,457.68 and 1,968,665.20 is: 2,952,246.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128,021.52 : 6,190,457.68 = 1,968,665.20 : x
  2. Step 2: Convert to fraction form
    4,128,021.52/6,190,457.68 = 1,968,665.20/x
  3. Step 3: Cross multiply
    4,128,021.52x = 6,190,457.68 × 1,968,665.20
  4. Step 4: Simplify right side
    4,128,021.52x = 12,186,938,606,688.73
  5. Step 5: Solve for x
    x = 12,186,938,606,688.73/4,128,021.52
  6. Step 6: Final answer
    x = 2,952,246.87

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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.