Finding the Fourth Proportional to 113,541,958.25, 156,687,965.35 and 61,330,994.18
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Solution
The fourth proportional to 113,541,958.25, 156,687,965.35 and 61,330,994.18 is: 84,636,805.98
Step by Step Solution
- Step 1: Write the proportion equation
113,541,958.25 : 156,687,965.35 = 61,330,994.18 : x - Step 2: Convert to fraction form
113,541,958.25/156,687,965.35 = 61,330,994.18/x - Step 3: Cross multiply
113,541,958.25x = 156,687,965.35 × 61,330,994.18 - Step 4: Simplify right side
113,541,958.25x = 9,609,828,690,020,124 - Step 5: Solve for x
x = 9,609,828,690,020,124/113,541,958.25 - Step 6: Final answer
x = 84,636,805.98
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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.