Finding the Fourth Proportional to 118,286,248,162.68, 163,291,309,808.04 and 79,246,018,936.80
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Solution
The fourth proportional to 118,286,248,162.68, 163,291,309,808.04 and 79,246,018,936.80 is: 109,397,215,908.53
Step by Step Solution
- Step 1: Write the proportion equation
118,286,248,162.68 : 163,291,309,808.04 = 79,246,018,936.80 : x - Step 2: Convert to fraction form
118,286,248,162.68/163,291,309,808.04 = 79,246,018,936.80/x - Step 3: Cross multiply
118,286,248,162.68x = 163,291,309,808.04 × 79,246,018,936.80 - Step 4: Simplify right side
118,286,248,162.68x = 12,940,186,229,262,814,019,584 - Step 5: Solve for x
x = 12,940,186,229,262,814,019,584/118,286,248,162.68 - Step 6: Final answer
x = 109,397,215,908.53
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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.