Finding the Fourth Proportional to 372,402,609.24, 513,878,808.78 and 207,405,531.48
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Solution
The fourth proportional to 372,402,609.24, 513,878,808.78 and 207,405,531.48 is: 286,199,142.56
Step by Step Solution
- Step 1: Write the proportion equation
372,402,609.24 : 513,878,808.78 = 207,405,531.48 : x - Step 2: Convert to fraction form
372,402,609.24/513,878,808.78 = 207,405,531.48/x - Step 3: Cross multiply
372,402,609.24x = 513,878,808.78 × 207,405,531.48 - Step 4: Simplify right side
372,402,609.24x = 106,581,307,451,325,184 - Step 5: Solve for x
x = 106,581,307,451,325,184/372,402,609.24 - Step 6: Final answer
x = 286,199,142.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.