Finding the Fourth Proportional to 86,279,269.20, 129,418,903.80 and 24,868,309.20
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Solution
The fourth proportional to 86,279,269.20, 129,418,903.80 and 24,868,309.20 is: 37,302,463.80
Step by Step Solution
- Step 1: Write the proportion equation
86,279,269.20 : 129,418,903.80 = 24,868,309.20 : x - Step 2: Convert to fraction form
86,279,269.20/129,418,903.80 = 24,868,309.20/x - Step 3: Cross multiply
86,279,269.20x = 129,418,903.80 × 24,868,309.20 - Step 4: Simplify right side
86,279,269.20x = 3,218,429,316,023,455 - Step 5: Solve for x
x = 3,218,429,316,023,455/86,279,269.20 - Step 6: Final answer
x = 37,302,463.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.