Finding the Fourth Proportional to 74,618,385.97, 102,971,992.99 and 40,671,237.87
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Solution
The fourth proportional to 74,618,385.97, 102,971,992.99 and 40,671,237.87 is: 56,125,556.28
Step by Step Solution
- Step 1: Write the proportion equation
74,618,385.97 : 102,971,992.99 = 40,671,237.87 : x - Step 2: Convert to fraction form
74,618,385.97/102,971,992.99 = 40,671,237.87/x - Step 3: Cross multiply
74,618,385.97x = 102,971,992.99 × 40,671,237.87 - Step 4: Simplify right side
74,618,385.97x = 4,187,998,420,937,074 - Step 5: Solve for x
x = 4,187,998,420,937,074/74,618,385.97 - Step 6: Final answer
x = 56,125,556.28
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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.