Finding the Fourth Proportional to 130,617,813.94, 180,211,996.92 and 74,093,250.96
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Solution
The fourth proportional to 130,617,813.94, 180,211,996.92 and 74,093,250.96 is: 102,225,663.65
Step by Step Solution
- Step 1: Write the proportion equation
130,617,813.94 : 180,211,996.92 = 74,093,250.96 : x - Step 2: Convert to fraction form
130,617,813.94/180,211,996.92 = 74,093,250.96/x - Step 3: Cross multiply
130,617,813.94x = 180,211,996.92 × 74,093,250.96 - Step 4: Simplify right side
130,617,813.94x = 13,352,492,714,074,156 - Step 5: Solve for x
x = 13,352,492,714,074,156/130,617,813.94 - Step 6: Final answer
x = 102,225,663.65
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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.