Finding the Fourth Proportional to 70,781,229.99, 97,681,127.88 and 39,419,278.77
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Solution
The fourth proportional to 70,781,229.99, 97,681,127.88 and 39,419,278.77 is: 54,400,292.44
Step by Step Solution
- Step 1: Write the proportion equation
70,781,229.99 : 97,681,127.88 = 39,419,278.77 : x - Step 2: Convert to fraction form
70,781,229.99/97,681,127.88 = 39,419,278.77/x - Step 3: Cross multiply
70,781,229.99x = 97,681,127.88 × 39,419,278.77 - Step 4: Simplify right side
70,781,229.99x = 3,850,519,610,469,739 - Step 5: Solve for x
x = 3,850,519,610,469,739/70,781,229.99 - Step 6: Final answer
x = 54,400,292.44
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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.