Home / 6,421,688.43-8,863,217.47-3,809,642.36

Finding the Fourth Proportional to 6,421,688.43, 8,863,217.47 and 3,809,642.36

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Solution

The fourth proportional to 6,421,688.43, 8,863,217.47 and 3,809,642.36 is: 5,258,070.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421,688.43 : 8,863,217.47 = 3,809,642.36 : x
  2. Step 2: Convert to fraction form
    6,421,688.43/8,863,217.47 = 3,809,642.36/x
  3. Step 3: Cross multiply
    6,421,688.43x = 8,863,217.47 × 3,809,642.36
  4. Step 4: Simplify right side
    6,421,688.43x = 33,765,688,732,237.96
  5. Step 5: Solve for x
    x = 33,765,688,732,237.96/6,421,688.43
  6. Step 6: Final answer
    x = 5,258,070.23

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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.