Finding the Fourth Proportional to 75,780,329.70, 113,670,494.55 and 68,127,579.30
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Solution
The fourth proportional to 75,780,329.70, 113,670,494.55 and 68,127,579.30 is: 102,191,368.95
Step by Step Solution
- Step 1: Write the proportion equation
75,780,329.70 : 113,670,494.55 = 68,127,579.30 : x - Step 2: Convert to fraction form
75,780,329.70/113,670,494.55 = 68,127,579.30/x - Step 3: Cross multiply
75,780,329.70x = 113,670,494.55 × 68,127,579.30 - Step 4: Simplify right side
75,780,329.70x = 7,744,095,631,525,342 - Step 5: Solve for x
x = 7,744,095,631,525,342/75,780,329.70 - Step 6: Final answer
x = 102,191,368.95
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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.