Finding the Fourth Proportional to 11,386,438.31, 15,696,941.73 and 8,117,577.95
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Solution
The fourth proportional to 11,386,438.31, 15,696,941.73 and 8,117,577.95 is: 11,190,606.28
Step by Step Solution
- Step 1: Write the proportion equation
11,386,438.31 : 15,696,941.73 = 8,117,577.95 : x - Step 2: Convert to fraction form
11,386,438.31/15,696,941.73 = 8,117,577.95/x - Step 3: Cross multiply
11,386,438.31x = 15,696,941.73 × 8,117,577.95 - Step 4: Simplify right side
11,386,438.31x = 127,421,148,069,882.86 - Step 5: Solve for x
x = 127,421,148,069,882.86/11,386,438.31 - Step 6: Final answer
x = 11,190,606.28
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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.