Finding the Fourth Proportional to 75,780,325.70, 113,670,488.55 and 68,127,575.30
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Solution
The fourth proportional to 75,780,325.70, 113,670,488.55 and 68,127,575.30 is: 102,191,362.95
Step by Step Solution
- Step 1: Write the proportion equation
75,780,325.70 : 113,670,488.55 = 68,127,575.30 : x - Step 2: Convert to fraction form
75,780,325.70/113,670,488.55 = 68,127,575.30/x - Step 3: Cross multiply
75,780,325.70x = 113,670,488.55 × 68,127,575.30 - Step 4: Simplify right side
75,780,325.70x = 7,744,094,768,077,912 - Step 5: Solve for x
x = 7,744,094,768,077,912/75,780,325.70 - Step 6: Final answer
x = 102,191,362.95
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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.