Finding the Fourth Proportional to 123,287,235.84, 170,137,635.84 and 74,385,216
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Solution
The fourth proportional to 123,287,235.84, 170,137,635.84 and 74,385,216 is: 102,652,352.50
Step by Step Solution
- Step 1: Write the proportion equation
123,287,235.84 : 170,137,635.84 = 74,385,216 : x - Step 2: Convert to fraction form
123,287,235.84/170,137,635.84 = 74,385,216/x - Step 3: Cross multiply
123,287,235.84x = 170,137,635.84 × 74,385,216 - Step 4: Simplify right side
123,287,235.84x = 12,655,724,791,687,742 - Step 5: Solve for x
x = 12,655,724,791,687,742/123,287,235.84 - Step 6: Final answer
x = 102,652,352.50
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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.