Finding the Fourth Proportional to 68,724,891.36, 103,081,990.56 and 39,952,660.80
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Solution
The fourth proportional to 68,724,891.36, 103,081,990.56 and 39,952,660.80 is: 59,925,883.07
Step by Step Solution
- Step 1: Write the proportion equation
68,724,891.36 : 103,081,990.56 = 39,952,660.80 : x - Step 2: Convert to fraction form
68,724,891.36/103,081,990.56 = 39,952,660.80/x - Step 3: Cross multiply
68,724,891.36x = 103,081,990.56 × 39,952,660.80 - Step 4: Simplify right side
68,724,891.36x = 4,118,399,803,432,482 - Step 5: Solve for x
x = 4,118,399,803,432,482/68,724,891.36 - Step 6: Final answer
x = 59,925,883.07
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.