Finding the Fourth Proportional to 87,594,709.80, 120,839,541.87 and 62,482,369.54
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Solution
The fourth proportional to 87,594,709.80, 120,839,541.87 and 62,482,369.54 is: 86,196,311.71
Step by Step Solution
- Step 1: Write the proportion equation
87,594,709.80 : 120,839,541.87 = 62,482,369.54 : x - Step 2: Convert to fraction form
87,594,709.80/120,839,541.87 = 62,482,369.54/x - Step 3: Cross multiply
87,594,709.80x = 120,839,541.87 × 62,482,369.54 - Step 4: Simplify right side
87,594,709.80x = 7,550,340,910,165,643 - Step 5: Solve for x
x = 7,550,340,910,165,643/87,594,709.80 - Step 6: Final answer
x = 86,196,311.71
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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.