Finding the Fourth Proportional to 217,636,860.96, 326,394,653.76 and 72,081,820.08
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Solution
The fourth proportional to 217,636,860.96, 326,394,653.76 and 72,081,820.08 is: 108,102,646.78
Step by Step Solution
- Step 1: Write the proportion equation
217,636,860.96 : 326,394,653.76 = 72,081,820.08 : x - Step 2: Convert to fraction form
217,636,860.96/326,394,653.76 = 72,081,820.08/x - Step 3: Cross multiply
217,636,860.96x = 326,394,653.76 × 72,081,820.08 - Step 4: Simplify right side
217,636,860.96x = 23,527,120,707,402,216 - Step 5: Solve for x
x = 23,527,120,707,402,216/217,636,860.96 - Step 6: Final answer
x = 108,102,646.78
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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.