Home / 442,904,940.43-664,357,643.93-115,379,587.15

Finding the Fourth Proportional to 442,904,940.43, 664,357,643.93 and 115,379,587.15

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Solution

The fourth proportional to 442,904,940.43, 664,357,643.93 and 115,379,587.15 is: 173,069,441.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,904,940.43 : 664,357,643.93 = 115,379,587.15 : x
  2. Step 2: Convert to fraction form
    442,904,940.43/664,357,643.93 = 115,379,587.15/x
  3. Step 3: Cross multiply
    442,904,940.43x = 664,357,643.93 × 115,379,587.15
  4. Step 4: Simplify right side
    442,904,940.43x = 76,653,310,676,590,096
  5. Step 5: Solve for x
    x = 76,653,310,676,590,096/442,904,940.43
  6. Step 6: Final answer
    x = 173,069,441.50

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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.