Finding the Fourth Proportional to 12,993,781.26, 19,490,618.76 and 3,278,417.02
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Solution
The fourth proportional to 12,993,781.26, 19,490,618.76 and 3,278,417.02 is: 4,917,612.12
Step by Step Solution
- Step 1: Write the proportion equation
12,993,781.26 : 19,490,618.76 = 3,278,417.02 : x - Step 2: Convert to fraction form
12,993,781.26/19,490,618.76 = 3,278,417.02/x - Step 3: Cross multiply
12,993,781.26x = 19,490,618.76 × 3,278,417.02 - Step 4: Simplify right side
12,993,781.26x = 63,898,376,273,115.30 - Step 5: Solve for x
x = 63,898,376,273,115.30/12,993,781.26 - Step 6: Final answer
x = 4,917,612.12
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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.