Finding the Fourth Proportional to 13,148,860.21, 19,727,718.95 and 8,285,518.96
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Solution
The fourth proportional to 13,148,860.21, 19,727,718.95 and 8,285,518.96 is: 12,431,069.07
Step by Step Solution
- Step 1: Write the proportion equation
13,148,860.21 : 19,727,718.95 = 8,285,518.96 : x - Step 2: Convert to fraction form
13,148,860.21/19,727,718.95 = 8,285,518.96/x - Step 3: Cross multiply
13,148,860.21x = 19,727,718.95 × 8,285,518.96 - Step 4: Simplify right side
13,148,860.21x = 163,454,389,369,170.78 - Step 5: Solve for x
x = 163,454,389,369,170.78/13,148,860.21 - Step 6: Final answer
x = 12,431,069.07
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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.