Home / 713,318,455.69-984,387,449.31-395,784,451.09

Finding the Fourth Proportional to 713,318,455.69, 984,387,449.31 and 395,784,451.09

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Solution

The fourth proportional to 713,318,455.69, 984,387,449.31 and 395,784,451.09 is: 546,186,970.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,318,455.69 : 984,387,449.31 = 395,784,451.09 : x
  2. Step 2: Convert to fraction form
    713,318,455.69/984,387,449.31 = 395,784,451.09/x
  3. Step 3: Cross multiply
    713,318,455.69x = 984,387,449.31 × 395,784,451.09
  4. Step 4: Simplify right side
    713,318,455.69x = 389,605,246,284,803,648
  5. Step 5: Solve for x
    x = 389,605,246,284,803,648/713,318,455.69
  6. Step 6: Final answer
    x = 546,186,970.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.