Finding the Fourth Proportional to 76,712,436.45, 115,067,867.36 and 44,343,742.95
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Solution
The fourth proportional to 76,712,436.45, 115,067,867.36 and 44,343,742.95 is: 66,515,159.31
Step by Step Solution
- Step 1: Write the proportion equation
76,712,436.45 : 115,067,867.36 = 44,343,742.95 : x - Step 2: Convert to fraction form
76,712,436.45/115,067,867.36 = 44,343,742.95/x - Step 3: Cross multiply
76,712,436.45x = 115,067,867.36 × 44,343,742.95 - Step 4: Simplify right side
76,712,436.45x = 5,102,539,931,794,817 - Step 5: Solve for x
x = 5,102,539,931,794,817/76,712,436.45 - Step 6: Final answer
x = 66,515,159.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.