Finding the Fourth Proportional to 485,017,501.20, 727,515,747.56 and 135,254,236.68
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Solution
The fourth proportional to 485,017,501.20, 727,515,747.56 and 135,254,236.68 is: 202,878,425.76
Step by Step Solution
- Step 1: Write the proportion equation
485,017,501.20 : 727,515,747.56 = 135,254,236.68 : x - Step 2: Convert to fraction form
485,017,501.20/727,515,747.56 = 135,254,236.68/x - Step 3: Cross multiply
485,017,501.20x = 727,515,747.56 × 135,254,236.68 - Step 4: Simplify right side
485,017,501.20x = 98,399,587,108,231,104 - Step 5: Solve for x
x = 98,399,587,108,231,104/485,017,501.20 - Step 6: Final answer
x = 202,878,425.76
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.