Finding the Fourth Proportional to 216,652,053.51, 324,775,904.01 and 85,495,415.09
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Solution
The fourth proportional to 216,652,053.51, 324,775,904.01 and 85,495,415.09 is: 128,163,339.68
Step by Step Solution
- Step 1: Write the proportion equation
216,652,053.51 : 324,775,904.01 = 85,495,415.09 : x - Step 2: Convert to fraction form
216,652,053.51/324,775,904.01 = 85,495,415.09/x - Step 3: Cross multiply
216,652,053.51x = 324,775,904.01 × 85,495,415.09 - Step 4: Simplify right side
216,652,053.51x = 27,766,850,725,740,124 - Step 5: Solve for x
x = 27,766,850,725,740,124/216,652,053.51 - Step 6: Final answer
x = 128,163,339.68
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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.