Home / 1,327,759,772.40-1,991,639,658.60-1,289,496,020.40

Finding the Fourth Proportional to 1,327,759,772.40, 1,991,639,658.60 and 1,289,496,020.40

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Solution

The fourth proportional to 1,327,759,772.40, 1,991,639,658.60 and 1,289,496,020.40 is: 1,934,244,030.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,759,772.40 : 1,991,639,658.60 = 1,289,496,020.40 : x
  2. Step 2: Convert to fraction form
    1,327,759,772.40/1,991,639,658.60 = 1,289,496,020.40/x
  3. Step 3: Cross multiply
    1,327,759,772.40x = 1,991,639,658.60 × 1,289,496,020.40
  4. Step 4: Simplify right side
    1,327,759,772.40x = 2,568,211,413,835,514,880
  5. Step 5: Solve for x
    x = 2,568,211,413,835,514,880/1,327,759,772.40
  6. Step 6: Final answer
    x = 1,934,244,030.60

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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.