Finding the Fourth Proportional to 1,214,696,356.38, 1,821,667,918.50 and 438,241,109.94
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Solution
The fourth proportional to 1,214,696,356.38, 1,821,667,918.50 and 438,241,109.94 is: 657,225,788.45
Step by Step Solution
- Step 1: Write the proportion equation
1,214,696,356.38 : 1,821,667,918.50 = 438,241,109.94 : x - Step 2: Convert to fraction form
1,214,696,356.38/1,821,667,918.50 = 438,241,109.94/x - Step 3: Cross multiply
1,214,696,356.38x = 1,821,667,918.50 × 438,241,109.94 - Step 4: Simplify right side
1,214,696,356.38x = 798,329,770,545,529,472 - Step 5: Solve for x
x = 798,329,770,545,529,472/1,214,696,356.38 - Step 6: Final answer
x = 657,225,788.45
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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.