Finding the Fourth Proportional to 1,007,749,324.84, 1,391,290,621.17 and 895,931,315.68
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Solution
The fourth proportional to 1,007,749,324.84, 1,391,290,621.17 and 895,931,315.68 is: 1,236,915,576.12
Step by Step Solution
- Step 1: Write the proportion equation
1,007,749,324.84 : 1,391,290,621.17 = 895,931,315.68 : x - Step 2: Convert to fraction form
1,007,749,324.84/1,391,290,621.17 = 895,931,315.68/x - Step 3: Cross multiply
1,007,749,324.84x = 1,391,290,621.17 × 895,931,315.68 - Step 4: Simplify right side
1,007,749,324.84x = 1,246,500,836,718,082,560 - Step 5: Solve for x
x = 1,246,500,836,718,082,560/1,007,749,324.84 - Step 6: Final answer
x = 1,236,915,576.12
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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.