Finding the Fourth Proportional to 66,148,551.68, 91,264,485.12 and 38,626,626.56
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Solution
The fourth proportional to 66,148,551.68, 91,264,485.12 and 38,626,626.56 is: 53,292,764.47
Step by Step Solution
- Step 1: Write the proportion equation
66,148,551.68 : 91,264,485.12 = 38,626,626.56 : x - Step 2: Convert to fraction form
66,148,551.68/91,264,485.12 = 38,626,626.56/x - Step 3: Cross multiply
66,148,551.68x = 91,264,485.12 × 38,626,626.56 - Step 4: Simplify right side
66,148,551.68x = 3,525,239,184,920,917 - Step 5: Solve for x
x = 3,525,239,184,920,917/66,148,551.68 - Step 6: Final answer
x = 53,292,764.47
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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.