Finding the Fourth Proportional to 151,758,797.58, 209,339,725.14 and 91,365,750.66
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Solution
The fourth proportional to 151,758,797.58, 209,339,725.14 and 91,365,750.66 is: 126,032,107.76
Step by Step Solution
- Step 1: Write the proportion equation
151,758,797.58 : 209,339,725.14 = 91,365,750.66 : x - Step 2: Convert to fraction form
151,758,797.58/209,339,725.14 = 91,365,750.66/x - Step 3: Cross multiply
151,758,797.58x = 209,339,725.14 × 91,365,750.66 - Step 4: Simplify right side
151,758,797.58x = 19,126,481,130,374,172 - Step 5: Solve for x
x = 19,126,481,130,374,172/151,758,797.58 - Step 6: Final answer
x = 126,032,107.76
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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.