Finding the Fourth Proportional to 19,957,730.70, 29,948,405.85 and 13,153,973.70
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Solution
The fourth proportional to 19,957,730.70, 29,948,405.85 and 13,153,973.70 is: 19,738,744.29
Step by Step Solution
- Step 1: Write the proportion equation
19,957,730.70 : 29,948,405.85 = 13,153,973.70 : x - Step 2: Convert to fraction form
19,957,730.70/29,948,405.85 = 13,153,973.70/x - Step 3: Cross multiply
19,957,730.70x = 29,948,405.85 × 13,153,973.70 - Step 4: Simplify right side
19,957,730.70x = 393,940,542,907,826.12 - Step 5: Solve for x
x = 393,940,542,907,826.12/19,957,730.70 - Step 6: Final answer
x = 19,738,744.29
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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.