Home / 307,614,764,960.65-461,054,815,421.78-128,540,405,600.65

Finding the Fourth Proportional to 307,614,764,960.65, 461,054,815,421.78 and 128,540,405,600.65

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Solution

The fourth proportional to 307,614,764,960.65, 461,054,815,421.78 and 128,540,405,600.65 is: 192,657,114,446.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,614,764,960.65 : 461,054,815,421.78 = 128,540,405,600.65 : x
  2. Step 2: Convert to fraction form
    307,614,764,960.65/461,054,815,421.78 = 128,540,405,600.65/x
  3. Step 3: Cross multiply
    307,614,764,960.65x = 461,054,815,421.78 × 128,540,405,600.65
  4. Step 4: Simplify right side
    307,614,764,960.65x = 59,264,172,978,448,422,141,952
  5. Step 5: Solve for x
    x = 59,264,172,978,448,422,141,952/307,614,764,960.65
  6. Step 6: Final answer
    x = 192,657,114,446.47

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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.