Finding the Fourth Proportional to 74,781,469.58, 103,215,646.68 and 43,851,603.38
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Solution
The fourth proportional to 74,781,469.58, 103,215,646.68 and 43,851,603.38 is: 60,525,309.63
Step by Step Solution
- Step 1: Write the proportion equation
74,781,469.58 : 103,215,646.68 = 43,851,603.38 : x - Step 2: Convert to fraction form
74,781,469.58/103,215,646.68 = 43,851,603.38/x - Step 3: Cross multiply
74,781,469.58x = 103,215,646.68 × 43,851,603.38 - Step 4: Simplify right side
74,781,469.58x = 4,526,171,600,821,574 - Step 5: Solve for x
x = 4,526,171,600,821,574/74,781,469.58 - Step 6: Final answer
x = 60,525,309.63
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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.