Finding the Fourth Proportional to 19,018,226.16, 28,526,289.48 and 13,905,894.96
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Solution
The fourth proportional to 19,018,226.16, 28,526,289.48 and 13,905,894.96 is: 20,858,074.87
Step by Step Solution
- Step 1: Write the proportion equation
19,018,226.16 : 28,526,289.48 = 13,905,894.96 : x - Step 2: Convert to fraction form
19,018,226.16/28,526,289.48 = 13,905,894.96/x - Step 3: Cross multiply
19,018,226.16x = 28,526,289.48 × 13,905,894.96 - Step 4: Simplify right side
19,018,226.16x = 396,683,585,107,433.06 - Step 5: Solve for x
x = 396,683,585,107,433.06/19,018,226.16 - Step 6: Final answer
x = 20,858,074.87
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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.