Home / 1,214,388,934.92-1,821,694,568.79-340,984,417.93

Finding the Fourth Proportional to 1,214,388,934.92, 1,821,694,568.79 and 340,984,417.93

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Solution

The fourth proportional to 1,214,388,934.92, 1,821,694,568.79 and 340,984,417.93 is: 511,507,840.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,388,934.92 : 1,821,694,568.79 = 340,984,417.93 : x
  2. Step 2: Convert to fraction form
    1,214,388,934.92/1,821,694,568.79 = 340,984,417.93/x
  3. Step 3: Cross multiply
    1,214,388,934.92x = 1,821,694,568.79 × 340,984,417.93
  4. Step 4: Simplify right side
    1,214,388,934.92x = 621,169,462,194,118,784
  5. Step 5: Solve for x
    x = 621,169,462,194,118,784/1,214,388,934.92
  6. Step 6: Final answer
    x = 511,507,840.96

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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.