Finding the Fourth Proportional to 66,260,863.16, 91,237,193.26 and 66,069,544.40
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Solution
The fourth proportional to 66,260,863.16, 91,237,193.26 and 66,069,544.40 is: 90,973,758.92
Step by Step Solution
- Step 1: Write the proportion equation
66,260,863.16 : 91,237,193.26 = 66,069,544.40 : x - Step 2: Convert to fraction form
66,260,863.16/91,237,193.26 = 66,069,544.40/x - Step 3: Cross multiply
66,260,863.16x = 91,237,193.26 × 66,069,544.40 - Step 4: Simplify right side
66,260,863.16x = 6,027,999,791,085,870 - Step 5: Solve for x
x = 6,027,999,791,085,870/66,260,863.16 - Step 6: Final answer
x = 90,973,758.92
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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.