Finding the Fourth Proportional to 155,423,962.57, 214,503,876.77 and 88,459,203.09
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Solution
The fourth proportional to 155,423,962.57, 214,503,876.77 and 88,459,203.09 is: 122,084,405.04
Step by Step Solution
- Step 1: Write the proportion equation
155,423,962.57 : 214,503,876.77 = 88,459,203.09 : x - Step 2: Convert to fraction form
155,423,962.57/214,503,876.77 = 88,459,203.09/x - Step 3: Cross multiply
155,423,962.57x = 214,503,876.77 × 88,459,203.09 - Step 4: Simplify right side
155,423,962.57x = 18,974,841,998,789,764 - Step 5: Solve for x
x = 18,974,841,998,789,764/155,423,962.57 - Step 6: Final answer
x = 122,084,405.04
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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.