Home / 319,240,115.66-440,551,164.76-172,562,399.66

Finding the Fourth Proportional to 319,240,115.66, 440,551,164.76 and 172,562,399.66

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Solution

The fourth proportional to 319,240,115.66, 440,551,164.76 and 172,562,399.66 is: 238,136,006.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,240,115.66 : 440,551,164.76 = 172,562,399.66 : x
  2. Step 2: Convert to fraction form
    319,240,115.66/440,551,164.76 = 172,562,399.66/x
  3. Step 3: Cross multiply
    319,240,115.66x = 440,551,164.76 × 172,562,399.66
  4. Step 4: Simplify right side
    319,240,115.66x = 76,022,566,164,663,600
  5. Step 5: Solve for x
    x = 76,022,566,164,663,600/319,240,115.66
  6. Step 6: Final answer
    x = 238,136,006.21

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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.