Finding the Fourth Proportional to 155,428,116.71, 214,413,368.22 and 92,659,986.19
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Solution
The fourth proportional to 155,428,116.71, 214,413,368.22 and 92,659,986.19 is: 127,824,618.59
Step by Step Solution
- Step 1: Write the proportion equation
155,428,116.71 : 214,413,368.22 = 92,659,986.19 : x - Step 2: Convert to fraction form
155,428,116.71/214,413,368.22 = 92,659,986.19/x - Step 3: Cross multiply
155,428,116.71x = 214,413,368.22 × 92,659,986.19 - Step 4: Simplify right side
155,428,116.71x = 19,867,539,737,668,624 - Step 5: Solve for x
x = 19,867,539,737,668,624/155,428,116.71 - Step 6: Final answer
x = 127,824,618.59
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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.