Finding the Fourth Proportional to 13,830,873.23, 20,694,928.71 and 8,689,230.56
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Solution
The fourth proportional to 13,830,873.23, 20,694,928.71 and 8,689,230.56 is: 13,001,565.70
Step by Step Solution
- Step 1: Write the proportion equation
13,830,873.23 : 20,694,928.71 = 8,689,230.56 : x - Step 2: Convert to fraction form
13,830,873.23/20,694,928.71 = 8,689,230.56/x - Step 3: Cross multiply
13,830,873.23x = 20,694,928.71 × 8,689,230.56 - Step 4: Simplify right side
13,830,873.23x = 179,823,006,983,953.41 - Step 5: Solve for x
x = 179,823,006,983,953.41/13,830,873.23 - Step 6: Final answer
x = 13,001,565.70
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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.