Finding the Fourth Proportional to 113,310,943.68, 156,369,109.86 and 64,418,371.68
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Solution
The fourth proportional to 113,310,943.68, 156,369,109.86 and 64,418,371.68 is: 88,897,357.23
Step by Step Solution
- Step 1: Write the proportion equation
113,310,943.68 : 156,369,109.86 = 64,418,371.68 : x - Step 2: Convert to fraction form
113,310,943.68/156,369,109.86 = 64,418,371.68/x - Step 3: Cross multiply
113,310,943.68x = 156,369,109.86 × 64,418,371.68 - Step 4: Simplify right side
113,310,943.68x = 10,073,043,438,232,234 - Step 5: Solve for x
x = 10,073,043,438,232,234/113,310,943.68 - Step 6: Final answer
x = 88,897,357.23
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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.