Finding the Fourth Proportional to 1,385,537,855.36, 1,912,027,007.28 and 750,442,547.84
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Solution
The fourth proportional to 1,385,537,855.36, 1,912,027,007.28 and 750,442,547.84 is: 1,035,602,465.38
Step by Step Solution
- Step 1: Write the proportion equation
1,385,537,855.36 : 1,912,027,007.28 = 750,442,547.84 : x - Step 2: Convert to fraction form
1,385,537,855.36/1,912,027,007.28 = 750,442,547.84/x - Step 3: Cross multiply
1,385,537,855.36x = 1,912,027,007.28 × 750,442,547.84 - Step 4: Simplify right side
1,385,537,855.36x = 1,434,866,418,882,093,568 - Step 5: Solve for x
x = 1,434,866,418,882,093,568/1,385,537,855.36 - Step 6: Final answer
x = 1,035,602,465.38
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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.