Home / 12,877,056,800.40-19,315,585,200.60-7,979,296,544.40

Finding the Fourth Proportional to 12,877,056,800.40, 19,315,585,200.60 and 7,979,296,544.40

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Solution

The fourth proportional to 12,877,056,800.40, 19,315,585,200.60 and 7,979,296,544.40 is: 11,968,944,816.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,877,056,800.40 : 19,315,585,200.60 = 7,979,296,544.40 : x
  2. Step 2: Convert to fraction form
    12,877,056,800.40/19,315,585,200.60 = 7,979,296,544.40/x
  3. Step 3: Cross multiply
    12,877,056,800.40x = 19,315,585,200.60 × 7,979,296,544.40
  4. Step 4: Simplify right side
    12,877,056,800.40x = 154,124,782,244,211,326,976
  5. Step 5: Solve for x
    x = 154,124,782,244,211,326,976/12,877,056,800.40
  6. Step 6: Final answer
    x = 11,968,944,816.60

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Double scale
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1.5x scale

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.