Finding the Fourth Proportional to 485,017,500.70, 727,515,746.80 and 135,254,236.17
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Solution
The fourth proportional to 485,017,500.70, 727,515,746.80 and 135,254,236.17 is: 202,878,424.99
Step by Step Solution
- Step 1: Write the proportion equation
485,017,500.70 : 727,515,746.80 = 135,254,236.17 : x - Step 2: Convert to fraction form
485,017,500.70/727,515,746.80 = 135,254,236.17/x - Step 3: Cross multiply
485,017,500.70x = 727,515,746.80 × 135,254,236.17 - Step 4: Simplify right side
485,017,500.70x = 98,399,586,635,081,104 - Step 5: Solve for x
x = 98,399,586,635,081,104/485,017,500.70 - Step 6: Final answer
x = 202,878,424.99
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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.