Home / 442,847,661.10-664,271,491.65-115,322,541.10

Finding the Fourth Proportional to 442,847,661.10, 664,271,491.65 and 115,322,541.10

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Solution

The fourth proportional to 442,847,661.10, 664,271,491.65 and 115,322,541.10 is: 172,983,811.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,847,661.10 : 664,271,491.65 = 115,322,541.10 : x
  2. Step 2: Convert to fraction form
    442,847,661.10/664,271,491.65 = 115,322,541.10/x
  3. Step 3: Cross multiply
    442,847,661.10x = 664,271,491.65 × 115,322,541.10
  4. Step 4: Simplify right side
    442,847,661.10x = 76,605,476,397,365,424
  5. Step 5: Solve for x
    x = 76,605,476,397,365,424/442,847,661.10
  6. Step 6: Final answer
    x = 172,983,811.65

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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.