Finding the Fourth Proportional to 19,948,639.12, 29,879,656.08 and 12,248,911.96
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Solution
The fourth proportional to 19,948,639.12, 29,879,656.08 and 12,248,911.96 is: 18,346,779.17
Step by Step Solution
- Step 1: Write the proportion equation
19,948,639.12 : 29,879,656.08 = 12,248,911.96 : x - Step 2: Convert to fraction form
19,948,639.12/29,879,656.08 = 12,248,911.96/x - Step 3: Cross multiply
19,948,639.12x = 29,879,656.08 × 12,248,911.96 - Step 4: Simplify right side
19,948,639.12x = 365,993,276,718,998.75 - Step 5: Solve for x
x = 365,993,276,718,998.75/19,948,639.12 - Step 6: Final answer
x = 18,346,779.17
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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.