Finding the Fourth Proportional to 70,912,133.74, 97,860,241.94 and 39,972,294.82
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Solution
The fourth proportional to 70,912,133.74, 97,860,241.94 and 39,972,294.82 is: 55,162,610.90
Step by Step Solution
- Step 1: Write the proportion equation
70,912,133.74 : 97,860,241.94 = 39,972,294.82 : x - Step 2: Convert to fraction form
70,912,133.74/97,860,241.94 = 39,972,294.82/x - Step 3: Cross multiply
70,912,133.74x = 97,860,241.94 × 39,972,294.82 - Step 4: Simplify right side
70,912,133.74x = 3,911,698,441,904,672.50 - Step 5: Solve for x
x = 3,911,698,441,904,672.50/70,912,133.74 - Step 6: Final answer
x = 55,162,610.90
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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.