Finding the Fourth Proportional to 209,163,281.15, 313,783,228.47 and 86,274,561.36
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Solution
The fourth proportional to 209,163,281.15, 313,783,228.47 and 86,274,561.36 is: 129,427,642.60
Step by Step Solution
- Step 1: Write the proportion equation
209,163,281.15 : 313,783,228.47 = 86,274,561.36 : x - Step 2: Convert to fraction form
209,163,281.15/313,783,228.47 = 86,274,561.36/x - Step 3: Cross multiply
209,163,281.15x = 313,783,228.47 × 86,274,561.36 - Step 4: Simplify right side
209,163,281.15x = 27,071,510,396,873,700 - Step 5: Solve for x
x = 27,071,510,396,873,700/209,163,281.15 - Step 6: Final answer
x = 129,427,642.60
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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.