Finding the Fourth Proportional to 81,734,135.24, 112,701,472.07 and 66,803,125.07
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Solution
The fourth proportional to 81,734,135.24, 112,701,472.07 and 66,803,125.07 is: 92,113,417.63
Step by Step Solution
- Step 1: Write the proportion equation
81,734,135.24 : 112,701,472.07 = 66,803,125.07 : x - Step 2: Convert to fraction form
81,734,135.24/112,701,472.07 = 66,803,125.07/x - Step 3: Cross multiply
81,734,135.24x = 112,701,472.07 × 66,803,125.07 - Step 4: Simplify right side
81,734,135.24x = 7,528,810,534,213,059 - Step 5: Solve for x
x = 7,528,810,534,213,059/81,734,135.24 - Step 6: Final answer
x = 92,113,417.63
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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.