Finding the Fourth Proportional to 74,331,659.78, 102,580,599.25 and 50,859,427.02
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Solution
The fourth proportional to 74,331,659.78, 102,580,599.25 and 50,859,427.02 is: 70,187,999.52
Step by Step Solution
- Step 1: Write the proportion equation
74,331,659.78 : 102,580,599.25 = 50,859,427.02 : x - Step 2: Convert to fraction form
74,331,659.78/102,580,599.25 = 50,859,427.02/x - Step 3: Cross multiply
74,331,659.78x = 102,580,599.25 × 50,859,427.02 - Step 4: Simplify right side
74,331,659.78x = 5,217,190,501,223,242 - Step 5: Solve for x
x = 5,217,190,501,223,242/74,331,659.78 - Step 6: Final answer
x = 70,187,999.52
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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.