Finding the Fourth Proportional to 71,608,477.68, 98,831,550.60 and 42,246,988.56
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Solution
The fourth proportional to 71,608,477.68, 98,831,550.60 and 42,246,988.56 is: 58,307,836.21
Step by Step Solution
- Step 1: Write the proportion equation
71,608,477.68 : 98,831,550.60 = 42,246,988.56 : x - Step 2: Convert to fraction form
71,608,477.68/98,831,550.60 = 42,246,988.56/x - Step 3: Cross multiply
71,608,477.68x = 98,831,550.60 × 42,246,988.56 - Step 4: Simplify right side
71,608,477.68x = 4,175,335,387,565,261 - Step 5: Solve for x
x = 4,175,335,387,565,261/71,608,477.68 - Step 6: Final answer
x = 58,307,836.21
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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.