Finding the Fourth Proportional to 81,574,838.24, 122,363,554.92 and 45,413,074.52
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Solution
The fourth proportional to 81,574,838.24, 122,363,554.92 and 45,413,074.52 is: 68,120,334.14
Step by Step Solution
- Step 1: Write the proportion equation
81,574,838.24 : 122,363,554.92 = 45,413,074.52 : x - Step 2: Convert to fraction form
81,574,838.24/122,363,554.92 = 45,413,074.52/x - Step 3: Cross multiply
81,574,838.24x = 122,363,554.92 × 45,413,074.52 - Step 4: Simplify right side
81,574,838.24x = 5,556,905,238,114,073 - Step 5: Solve for x
x = 5,556,905,238,114,073/81,574,838.24 - Step 6: Final answer
x = 68,120,334.14
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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.