Finding the Fourth Proportional to 372,649,427.64, 514,258,249.68 and 216,109,347.12
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Solution
The fourth proportional to 372,649,427.64, 514,258,249.68 and 216,109,347.12 is: 298,232,081.81
Step by Step Solution
- Step 1: Write the proportion equation
372,649,427.64 : 514,258,249.68 = 216,109,347.12 : x - Step 2: Convert to fraction form
372,649,427.64/514,258,249.68 = 216,109,347.12/x - Step 3: Cross multiply
372,649,427.64x = 514,258,249.68 × 216,109,347.12 - Step 4: Simplify right side
372,649,427.64x = 111,136,014,589,418,752 - Step 5: Solve for x
x = 111,136,014,589,418,752/372,649,427.64 - Step 6: Final answer
x = 298,232,081.81
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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.