Finding the Fourth Proportional to 403,910,980.74, 557,373,131.42 and 234,352,083.06
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Solution
The fourth proportional to 403,910,980.74, 557,373,131.42 and 234,352,083.06 is: 323,391,936.88
Step by Step Solution
- Step 1: Write the proportion equation
403,910,980.74 : 557,373,131.42 = 234,352,083.06 : x - Step 2: Convert to fraction form
403,910,980.74/557,373,131.42 = 234,352,083.06/x - Step 3: Cross multiply
403,910,980.74x = 557,373,131.42 × 234,352,083.06 - Step 4: Simplify right side
403,910,980.74x = 130,621,554,389,952,128 - Step 5: Solve for x
x = 130,621,554,389,952,128/403,910,980.74 - Step 6: Final answer
x = 323,391,936.88
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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.