Finding the Fourth Proportional to 170,756,421.13, 235,643,940 and 92,439,974.63
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Solution
The fourth proportional to 170,756,421.13, 235,643,940 and 92,439,974.63 is: 127,567,207.66
Step by Step Solution
- Step 1: Write the proportion equation
170,756,421.13 : 235,643,940 = 92,439,974.63 : x - Step 2: Convert to fraction form
170,756,421.13/235,643,940 = 92,439,974.63/x - Step 3: Cross multiply
170,756,421.13x = 235,643,940 × 92,439,974.63 - Step 4: Simplify right side
170,756,421.13x = 21,782,919,834,135,024 - Step 5: Solve for x
x = 21,782,919,834,135,024/170,756,421.13 - Step 6: Final answer
x = 127,567,207.66
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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.