Finding the Fourth Proportional to 115,725,658.40, 173,336,545.20 and 70,208,064.80
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Solution
The fourth proportional to 115,725,658.40, 173,336,545.20 and 70,208,064.80 is: 105,159,249.61
Step by Step Solution
- Step 1: Write the proportion equation
115,725,658.40 : 173,336,545.20 = 70,208,064.80 : x - Step 2: Convert to fraction form
115,725,658.40/173,336,545.20 = 70,208,064.80/x - Step 3: Cross multiply
115,725,658.40x = 173,336,545.20 × 70,208,064.80 - Step 4: Simplify right side
115,725,658.40x = 12,169,623,397,609,728 - Step 5: Solve for x
x = 12,169,623,397,609,728/115,725,658.40 - Step 6: Final answer
x = 105,159,249.61
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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.