Home / 6,457,739.72-8,911,680.81-3,557,121.62

Finding the Fourth Proportional to 6,457,739.72, 8,911,680.81 and 3,557,121.62

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Solution

The fourth proportional to 6,457,739.72, 8,911,680.81 and 3,557,121.62 is: 4,908,827.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,457,739.72 : 8,911,680.81 = 3,557,121.62 : x
  2. Step 2: Convert to fraction form
    6,457,739.72/8,911,680.81 = 3,557,121.62/x
  3. Step 3: Cross multiply
    6,457,739.72x = 8,911,680.81 × 3,557,121.62
  4. Step 4: Simplify right side
    6,457,739.72x = 31,699,932,481,989.72
  5. Step 5: Solve for x
    x = 31,699,932,481,989.72/6,457,739.72
  6. Step 6: Final answer
    x = 4,908,827.83

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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.