Finding the Fourth Proportional to 70,902,077.80, 97,844,772.66 and 38,307,029.80
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Solution
The fourth proportional to 70,902,077.80, 97,844,772.66 and 38,307,029.80 is: 52,863,649.96
Step by Step Solution
- Step 1: Write the proportion equation
70,902,077.80 : 97,844,772.66 = 38,307,029.80 : x - Step 2: Convert to fraction form
70,902,077.80/97,844,772.66 = 38,307,029.80/x - Step 3: Cross multiply
70,902,077.80x = 97,844,772.66 × 38,307,029.80 - Step 4: Simplify right side
70,902,077.80x = 3,748,142,622,060,845 - Step 5: Solve for x
x = 3,748,142,622,060,845/70,902,077.80 - Step 6: Final answer
x = 52,863,649.96
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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.