Finding the Fourth Proportional to 71,938,372.24, 99,274,883.70 and 38,898,542.26
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Solution
The fourth proportional to 71,938,372.24, 99,274,883.70 and 38,898,542.26 is: 53,679,950.47
Step by Step Solution
- Step 1: Write the proportion equation
71,938,372.24 : 99,274,883.70 = 38,898,542.26 : x - Step 2: Convert to fraction form
71,938,372.24/99,274,883.70 = 38,898,542.26/x - Step 3: Cross multiply
71,938,372.24x = 99,274,883.70 × 38,898,542.26 - Step 4: Simplify right side
71,938,372.24x = 3,861,648,258,961,035 - Step 5: Solve for x
x = 3,861,648,258,961,035/71,938,372.24 - Step 6: Final answer
x = 53,679,950.47
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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.