Home / 1,214,388,946.42-1,821,694,586.01-340,984,429.45

Finding the Fourth Proportional to 1,214,388,946.42, 1,821,694,586.01 and 340,984,429.45

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Solution

The fourth proportional to 1,214,388,946.42, 1,821,694,586.01 and 340,984,429.45 is: 511,507,858.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,388,946.42 : 1,821,694,586.01 = 340,984,429.45 : x
  2. Step 2: Convert to fraction form
    1,214,388,946.42/1,821,694,586.01 = 340,984,429.45/x
  3. Step 3: Cross multiply
    1,214,388,946.42x = 1,821,694,586.01 × 340,984,429.45
  4. Step 4: Simplify right side
    1,214,388,946.42x = 621,169,489,042,773,760
  5. Step 5: Solve for x
    x = 621,169,489,042,773,760/1,214,388,946.42
  6. Step 6: Final answer
    x = 511,507,858.23

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Double scale
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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.