Home / 8,457,646.40-12,686,469.60-3,908,686.40

Finding the Fourth Proportional to 8,457,646.40, 12,686,469.60 and 3,908,686.40

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Solution

The fourth proportional to 8,457,646.40, 12,686,469.60 and 3,908,686.40 is: 5,863,029.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,457,646.40 : 12,686,469.60 = 3,908,686.40 : x
  2. Step 2: Convert to fraction form
    8,457,646.40/12,686,469.60 = 3,908,686.40/x
  3. Step 3: Cross multiply
    8,457,646.40x = 12,686,469.60 × 3,908,686.40
  4. Step 4: Simplify right side
    8,457,646.40x = 49,587,431,189,533.44
  5. Step 5: Solve for x
    x = 49,587,431,189,533.44/8,457,646.40
  6. Step 6: Final answer
    x = 5,863,029.60

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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.