Finding the Fourth Proportional to 81,205,271,152.58, 121,758,260,903.86 and 38,723,161,706.94
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Solution
The fourth proportional to 81,205,271,152.58, 121,758,260,903.86 and 38,723,161,706.94 is: 58,061,068,686.99
Step by Step Solution
- Step 1: Write the proportion equation
81,205,271,152.58 : 121,758,260,903.86 = 38,723,161,706.94 : x - Step 2: Convert to fraction form
81,205,271,152.58/121,758,260,903.86 = 38,723,161,706.94/x - Step 3: Cross multiply
81,205,271,152.58x = 121,758,260,903.86 × 38,723,161,706.94 - Step 4: Simplify right side
81,205,271,152.58x = 4,714,864,826,135,961,665,536 - Step 5: Solve for x
x = 4,714,864,826,135,961,665,536/81,205,271,152.58 - Step 6: Final answer
x = 58,061,068,686.99
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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.