Home / 319,240,971.36-440,515,104.48-180,003,435.84

Finding the Fourth Proportional to 319,240,971.36, 440,515,104.48 and 180,003,435.84

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Solution

The fourth proportional to 319,240,971.36, 440,515,104.48 and 180,003,435.84 is: 248,383,633.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,240,971.36 : 440,515,104.48 = 180,003,435.84 : x
  2. Step 2: Convert to fraction form
    319,240,971.36/440,515,104.48 = 180,003,435.84/x
  3. Step 3: Cross multiply
    319,240,971.36x = 440,515,104.48 × 180,003,435.84
  4. Step 4: Simplify right side
    319,240,971.36x = 79,294,232,345,816,576
  5. Step 5: Solve for x
    x = 79,294,232,345,816,576/319,240,971.36
  6. Step 6: Final answer
    x = 248,383,633.24

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1.5x scale

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.