Finding the Fourth Proportional to 19,956,484.80, 29,934,727.20 and 15,651,812.70
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Solution
The fourth proportional to 19,956,484.80, 29,934,727.20 and 15,651,812.70 is: 23,477,719.05
Step by Step Solution
- Step 1: Write the proportion equation
19,956,484.80 : 29,934,727.20 = 15,651,812.70 : x - Step 2: Convert to fraction form
19,956,484.80/29,934,727.20 = 15,651,812.70/x - Step 3: Cross multiply
19,956,484.80x = 29,934,727.20 × 15,651,812.70 - Step 4: Simplify right side
19,956,484.80x = 468,532,743,359,995.38 - Step 5: Solve for x
x = 468,532,743,359,995.38/19,956,484.80 - Step 6: Final answer
x = 23,477,719.05
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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.