Finding the Fourth Proportional to 66,260,789.46, 91,237,091.22 and 66,069,470.70
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Solution
The fourth proportional to 66,260,789.46, 91,237,091.22 and 66,069,470.70 is: 90,973,656.88
Step by Step Solution
- Step 1: Write the proportion equation
66,260,789.46 : 91,237,091.22 = 66,069,470.70 : x - Step 2: Convert to fraction form
66,260,789.46/91,237,091.22 = 66,069,470.70/x - Step 3: Cross multiply
66,260,789.46x = 91,237,091.22 × 66,069,470.70 - Step 4: Simplify right side
66,260,789.46x = 6,027,986,325,113,017 - Step 5: Solve for x
x = 6,027,986,325,113,017/66,260,789.46 - Step 6: Final answer
x = 90,973,656.88
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1.5x scale
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.