Finding the Fourth Proportional to 13,331,919.88, 19,998,916.68 and 4,357,379.08
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Solution
The fourth proportional to 13,331,919.88, 19,998,916.68 and 4,357,379.08 is: 6,536,407.51
Step by Step Solution
- Step 1: Write the proportion equation
13,331,919.88 : 19,998,916.68 = 4,357,379.08 : x - Step 2: Convert to fraction form
13,331,919.88/19,998,916.68 = 4,357,379.08/x - Step 3: Cross multiply
13,331,919.88x = 19,998,916.68 × 4,357,379.08 - Step 4: Simplify right side
13,331,919.88x = 87,142,861,164,095.05 - Step 5: Solve for x
x = 87,142,861,164,095.05/13,331,919.88 - Step 6: Final answer
x = 6,536,407.51
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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.