Finding the Fourth Proportional to 13,879,948.07, 19,154,926.74 and 7,684,994.46
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Solution
The fourth proportional to 13,879,948.07, 19,154,926.74 and 7,684,994.46 is: 10,605,623.68
Step by Step Solution
- Step 1: Write the proportion equation
13,879,948.07 : 19,154,926.74 = 7,684,994.46 : x - Step 2: Convert to fraction form
13,879,948.07/19,154,926.74 = 7,684,994.46/x - Step 3: Cross multiply
13,879,948.07x = 19,154,926.74 × 7,684,994.46 - Step 4: Simplify right side
13,879,948.07x = 147,205,505,919,906.53 - Step 5: Solve for x
x = 147,205,505,919,906.53/13,879,948.07 - Step 6: Final answer
x = 10,605,623.68
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.