Finding the Fourth Proportional to 87,164,726.49, 120,295,818.97 and 65,099,918.96
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Solution
The fourth proportional to 87,164,726.49, 120,295,818.97 and 65,099,918.96 is: 89,844,233.80
Step by Step Solution
- Step 1: Write the proportion equation
87,164,726.49 : 120,295,818.97 = 65,099,918.96 : x - Step 2: Convert to fraction form
87,164,726.49/120,295,818.97 = 65,099,918.96/x - Step 3: Cross multiply
87,164,726.49x = 120,295,818.97 × 65,099,918.96 - Step 4: Simplify right side
87,164,726.49x = 7,831,248,066,173,831 - Step 5: Solve for x
x = 7,831,248,066,173,831/87,164,726.49 - Step 6: Final answer
x = 89,844,233.80
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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.