Finding the Fourth Proportional to 106,121,709.36, 159,215,050.71 and 54,342,973.31
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Solution
The fourth proportional to 106,121,709.36, 159,215,050.71 and 54,342,973.31 is: 81,531,095.78
Step by Step Solution
- Step 1: Write the proportion equation
106,121,709.36 : 159,215,050.71 = 54,342,973.31 : x - Step 2: Convert to fraction form
106,121,709.36/159,215,050.71 = 54,342,973.31/x - Step 3: Cross multiply
106,121,709.36x = 159,215,050.71 × 54,342,973.31 - Step 4: Simplify right side
106,121,709.36x = 8,652,219,250,487,752 - Step 5: Solve for x
x = 8,652,219,250,487,752/106,121,709.36 - Step 6: Final answer
x = 81,531,095.78
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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.