Finding the Fourth Proportional to 72,292,985.97, 99,764,438.84 and 39,253,299
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Solution
The fourth proportional to 72,292,985.97, 99,764,438.84 and 39,253,299 is: 54,169,616.80
Step by Step Solution
- Step 1: Write the proportion equation
72,292,985.97 : 99,764,438.84 = 39,253,299 : x - Step 2: Convert to fraction form
72,292,985.97/99,764,438.84 = 39,253,299/x - Step 3: Cross multiply
72,292,985.97x = 99,764,438.84 × 39,253,299 - Step 4: Simplify right side
72,292,985.97x = 3,916,083,347,157,466.50 - Step 5: Solve for x
x = 3,916,083,347,157,466.50/72,292,985.97 - Step 6: Final answer
x = 54,169,616.80
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.