Finding the Fourth Proportional to 13,019,510.50, 19,490,955.41 and 8,690,823.99
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Solution
The fourth proportional to 13,019,510.50, 19,490,955.41 and 8,690,823.99 is: 13,010,662.95
Step by Step Solution
- Step 1: Write the proportion equation
13,019,510.50 : 19,490,955.41 = 8,690,823.99 : x - Step 2: Convert to fraction form
13,019,510.50/19,490,955.41 = 8,690,823.99/x - Step 3: Cross multiply
13,019,510.50x = 19,490,955.41 × 8,690,823.99 - Step 4: Simplify right side
13,019,510.50x = 169,392,462,886,975.38 - Step 5: Solve for x
x = 169,392,462,886,975.38/13,019,510.50 - Step 6: Final answer
x = 13,010,662.95
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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.