Finding the Fourth Proportional to 11,172,484,716.38, 15,418,717,099 and 6,160,216,639.58
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Solution
The fourth proportional to 11,172,484,716.38, 15,418,717,099 and 6,160,216,639.58 is: 8,501,478,412.85
Step by Step Solution
- Step 1: Write the proportion equation
11,172,484,716.38 : 15,418,717,099 = 6,160,216,639.58 : x - Step 2: Convert to fraction form
11,172,484,716.38/15,418,717,099 = 6,160,216,639.58/x - Step 3: Cross multiply
11,172,484,716.38x = 15,418,717,099 × 6,160,216,639.58 - Step 4: Simplify right side
11,172,484,716.38x = 94,982,637,634,236,465,152 - Step 5: Solve for x
x = 94,982,637,634,236,465,152/11,172,484,716.38 - Step 6: Final answer
x = 8,501,478,412.85
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1.5x scale
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.