Finding the Fourth Proportional to 75,552,606.40, 113,356,903.20 and 72,753,246.40
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Solution
The fourth proportional to 75,552,606.40, 113,356,903.20 and 72,753,246.40 is: 109,156,825.99
Step by Step Solution
- Step 1: Write the proportion equation
75,552,606.40 : 113,356,903.20 = 72,753,246.40 : x - Step 2: Convert to fraction form
75,552,606.40/113,356,903.20 = 72,753,246.40/x - Step 3: Cross multiply
75,552,606.40x = 113,356,903.20 × 72,753,246.40 - Step 4: Simplify right side
75,552,606.40x = 8,247,082,709,650,549 - Step 5: Solve for x
x = 8,247,082,709,650,549/75,552,606.40 - Step 6: Final answer
x = 109,156,825.99
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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.