Finding the Fourth Proportional to 291,344,664.90, 436,947,013.35 and 168,256,805.70
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Solution
The fourth proportional to 291,344,664.90, 436,947,013.35 and 168,256,805.70 is: 252,344,791.53
Step by Step Solution
- Step 1: Write the proportion equation
291,344,664.90 : 436,947,013.35 = 168,256,805.70 : x - Step 2: Convert to fraction form
291,344,664.90/436,947,013.35 = 168,256,805.70/x - Step 3: Cross multiply
291,344,664.90x = 436,947,013.35 × 168,256,805.70 - Step 4: Simplify right side
291,344,664.90x = 73,519,308,726,426,256 - Step 5: Solve for x
x = 73,519,308,726,426,256/291,344,664.90 - Step 6: Final answer
x = 252,344,791.53
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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.