Finding the Fourth Proportional to 19,957,727.70, 29,948,401.35 and 13,153,970.70
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Solution
The fourth proportional to 19,957,727.70, 29,948,401.35 and 13,153,970.70 is: 19,738,739.79
Step by Step Solution
- Step 1: Write the proportion equation
19,957,727.70 : 29,948,401.35 = 13,153,970.70 : x - Step 2: Convert to fraction form
19,957,727.70/29,948,401.35 = 13,153,970.70/x - Step 3: Cross multiply
19,957,727.70x = 29,948,401.35 × 13,153,970.70 - Step 4: Simplify right side
19,957,727.70x = 393,940,393,869,740.44 - Step 5: Solve for x
x = 393,940,393,869,740.44/19,957,727.70 - Step 6: Final answer
x = 19,738,739.79
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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.