Finding the Fourth Proportional to 1,728,881,138, 2,385,855,465.04 and 935,926,528.80
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Solution
The fourth proportional to 1,728,881,138, 2,385,855,465.04 and 935,926,528.80 is: 1,291,578,336.15
Step by Step Solution
- Step 1: Write the proportion equation
1,728,881,138 : 2,385,855,465.04 = 935,926,528.80 : x - Step 2: Convert to fraction form
1,728,881,138/2,385,855,465.04 = 935,926,528.80/x - Step 3: Cross multiply
1,728,881,138x = 2,385,855,465.04 × 935,926,528.80 - Step 4: Simplify right side
1,728,881,138x = 2,232,985,423,613,396,736 - Step 5: Solve for x
x = 2,232,985,423,613,396,736/1,728,881,138 - Step 6: Final answer
x = 1,291,578,336.15
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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.