Home / 7,638,420.54-10,540,779.03-4,200,650.94

Finding the Fourth Proportional to 7,638,420.54, 10,540,779.03 and 4,200,650.94

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Solution

The fourth proportional to 7,638,420.54, 10,540,779.03 and 4,200,650.94 is: 5,796,765.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,638,420.54 : 10,540,779.03 = 4,200,650.94 : x
  2. Step 2: Convert to fraction form
    7,638,420.54/10,540,779.03 = 4,200,650.94/x
  3. Step 3: Cross multiply
    7,638,420.54x = 10,540,779.03 × 4,200,650.94
  4. Step 4: Simplify right side
    7,638,420.54x = 44,278,133,340,701.79
  5. Step 5: Solve for x
    x = 44,278,133,340,701.79/7,638,420.54
  6. Step 6: Final answer
    x = 5,796,765.59

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1.5x scale

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.