Finding the Fourth Proportional to 68,986,121.40, 103,479,182.10 and 58,727,341.80
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Solution
The fourth proportional to 68,986,121.40, 103,479,182.10 and 58,727,341.80 is: 88,091,012.70
Step by Step Solution
- Step 1: Write the proportion equation
68,986,121.40 : 103,479,182.10 = 58,727,341.80 : x - Step 2: Convert to fraction form
68,986,121.40/103,479,182.10 = 58,727,341.80/x - Step 3: Cross multiply
68,986,121.40x = 103,479,182.10 × 58,727,341.80 - Step 4: Simplify right side
68,986,121.40x = 6,077,057,296,371,141 - Step 5: Solve for x
x = 6,077,057,296,371,141/68,986,121.40 - Step 6: Final answer
x = 88,091,012.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.