Home / 1,346,809,789.80-2,020,886,531.10-764,990,807.40

Finding the Fourth Proportional to 1,346,809,789.80, 2,020,886,531.10 and 764,990,807.40

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Solution

The fourth proportional to 1,346,809,789.80, 2,020,886,531.10 and 764,990,807.40 is: 1,147,867,821.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346,809,789.80 : 2,020,886,531.10 = 764,990,807.40 : x
  2. Step 2: Convert to fraction form
    1,346,809,789.80/2,020,886,531.10 = 764,990,807.40/x
  3. Step 3: Cross multiply
    1,346,809,789.80x = 2,020,886,531.10 × 764,990,807.40
  4. Step 4: Simplify right side
    1,346,809,789.80x = 1,545,959,619,089,974,016
  5. Step 5: Solve for x
    x = 1,545,959,619,089,974,016/1,346,809,789.80
  6. Step 6: Final answer
    x = 1,147,867,821.28

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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.