Finding the Fourth Proportional to 66,651,928.04, 91,986,587.86 and 38,395,275.68
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Solution
The fourth proportional to 66,651,928.04, 91,986,587.86 and 38,395,275.68 is: 52,989,470.88
Step by Step Solution
- Step 1: Write the proportion equation
66,651,928.04 : 91,986,587.86 = 38,395,275.68 : x - Step 2: Convert to fraction form
66,651,928.04/91,986,587.86 = 38,395,275.68/x - Step 3: Cross multiply
66,651,928.04x = 91,986,587.86 × 38,395,275.68 - Step 4: Simplify right side
66,651,928.04x = 3,531,850,399,747,241 - Step 5: Solve for x
x = 3,531,850,399,747,241/66,651,928.04 - Step 6: Final answer
x = 52,989,470.88
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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.