Finding the Fourth Proportional to 19,898,462.60, 29,832,948.30 and 13,492,728.20
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Solution
The fourth proportional to 19,898,462.60, 29,832,948.30 and 13,492,728.20 is: 20,229,093.62
Step by Step Solution
- Step 1: Write the proportion equation
19,898,462.60 : 29,832,948.30 = 13,492,728.20 : x - Step 2: Convert to fraction form
19,898,462.60/29,832,948.30 = 13,492,728.20/x - Step 3: Cross multiply
19,898,462.60x = 29,832,948.30 × 13,492,728.20 - Step 4: Simplify right side
19,898,462.60x = 402,527,862,816,552.06 - Step 5: Solve for x
x = 402,527,862,816,552.06/19,898,462.60 - Step 6: Final answer
x = 20,229,093.62
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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.