Home / 7,121,790.52-9,831,477-4,065,414.28

Finding the Fourth Proportional to 7,121,790.52, 9,831,477 and 4,065,414.28

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Solution

The fourth proportional to 7,121,790.52, 9,831,477 and 4,065,414.28 is: 5,612,216.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121,790.52 : 9,831,477 = 4,065,414.28 : x
  2. Step 2: Convert to fraction form
    7,121,790.52/9,831,477 = 4,065,414.28/x
  3. Step 3: Cross multiply
    7,121,790.52x = 9,831,477 × 4,065,414.28
  4. Step 4: Simplify right side
    7,121,790.52x = 39,969,026,989,291.55
  5. Step 5: Solve for x
    x = 39,969,026,989,291.55/7,121,790.52
  6. Step 6: Final answer
    x = 5,612,216.04

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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.