Finding the Fourth Proportional to 276,495,997.40, 381,570,101.21 and 151,056,318.05
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Solution
The fourth proportional to 276,495,997.40, 381,570,101.21 and 151,056,318.05 is: 208,460,791.87
Step by Step Solution
- Step 1: Write the proportion equation
276,495,997.40 : 381,570,101.21 = 151,056,318.05 : x - Step 2: Convert to fraction form
276,495,997.40/381,570,101.21 = 151,056,318.05/x - Step 3: Cross multiply
276,495,997.40x = 381,570,101.21 × 151,056,318.05 - Step 4: Simplify right side
276,495,997.40x = 57,638,574,566,748,448 - Step 5: Solve for x
x = 57,638,574,566,748,448/276,495,997.40 - Step 6: Final answer
x = 208,460,791.87
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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.