Finding the Fourth Proportional to 81,255,776.62, 121,811,919.60 and 62,171,730.31
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Solution
The fourth proportional to 81,255,776.62, 121,811,919.60 and 62,171,730.31 is: 93,202,700.52
Step by Step Solution
- Step 1: Write the proportion equation
81,255,776.62 : 121,811,919.60 = 62,171,730.31 : x - Step 2: Convert to fraction form
81,255,776.62/121,811,919.60 = 62,171,730.31/x - Step 3: Cross multiply
81,255,776.62x = 121,811,919.60 × 62,171,730.31 - Step 4: Simplify right side
81,255,776.62x = 7,573,257,813,914,603 - Step 5: Solve for x
x = 7,573,257,813,914,603/81,255,776.62 - Step 6: Final answer
x = 93,202,700.52
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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.