Finding the Fourth Proportional to 153,272,372.37, 211,792,553.68 and 109,142,757.30
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Solution
The fourth proportional to 153,272,372.37, 211,792,553.68 and 109,142,757.30 is: 150,814,024.26
Step by Step Solution
- Step 1: Write the proportion equation
153,272,372.37 : 211,792,553.68 = 109,142,757.30 : x - Step 2: Convert to fraction form
153,272,372.37/211,792,553.68 = 109,142,757.30/x - Step 3: Cross multiply
153,272,372.37x = 211,792,553.68 × 109,142,757.30 - Step 4: Simplify right side
153,272,372.37x = 23,115,623,284,968,920 - Step 5: Solve for x
x = 23,115,623,284,968,920/153,272,372.37 - Step 6: Final answer
x = 150,814,024.26
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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.