Finding the Fourth Proportional to 20,335,051.95, 28,062,338.67 and 11,167,694.70
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Solution
The fourth proportional to 20,335,051.95, 28,062,338.67 and 11,167,694.70 is: 15,411,400.55
Step by Step Solution
- Step 1: Write the proportion equation
20,335,051.95 : 28,062,338.67 = 11,167,694.70 : x - Step 2: Convert to fraction form
20,335,051.95/28,062,338.67 = 11,167,694.70/x - Step 3: Cross multiply
20,335,051.95x = 28,062,338.67 × 11,167,694.70 - Step 4: Simplify right side
20,335,051.95x = 313,391,630,834,564.06 - Step 5: Solve for x
x = 313,391,630,834,564.06/20,335,051.95 - Step 6: Final answer
x = 15,411,400.55
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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.