Finding the Fourth Proportional to 168,531,838.20, 252,804,755.70 and 53,513,134.20
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Solution
The fourth proportional to 168,531,838.20, 252,804,755.70 and 53,513,134.20 is: 80,271,923.47
Step by Step Solution
- Step 1: Write the proportion equation
168,531,838.20 : 252,804,755.70 = 53,513,134.20 : x - Step 2: Convert to fraction form
168,531,838.20/252,804,755.70 = 53,513,134.20/x - Step 3: Cross multiply
168,531,838.20x = 252,804,755.70 × 53,513,134.20 - Step 4: Simplify right side
168,531,838.20x = 13,528,374,818,172,316 - Step 5: Solve for x
x = 13,528,374,818,172,316/168,531,838.20 - Step 6: Final answer
x = 80,271,923.47
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.