Finding the Fourth Proportional to 70,890,562.12, 97,829,063.40 and 38,295,514.12
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Solution
The fourth proportional to 70,890,562.12, 97,829,063.40 and 38,295,514.12 is: 52,847,856.85
Step by Step Solution
- Step 1: Write the proportion equation
70,890,562.12 : 97,829,063.40 = 38,295,514.12 : x - Step 2: Convert to fraction form
70,890,562.12/97,829,063.40 = 38,295,514.12/x - Step 3: Cross multiply
70,890,562.12x = 97,829,063.40 × 38,295,514.12 - Step 4: Simplify right side
70,890,562.12x = 3,746,414,278,781,075 - Step 5: Solve for x
x = 3,746,414,278,781,075/70,890,562.12 - Step 6: Final answer
x = 52,847,856.85
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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.