Finding the Fourth Proportional to 4,138,354,078.74, 5,718,398,983.47 and 2,946,854,472.08
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Solution
The fourth proportional to 4,138,354,078.74, 5,718,398,983.47 and 2,946,854,472.08 is: 4,071,978,689.33
Step by Step Solution
- Step 1: Write the proportion equation
4,138,354,078.74 : 5,718,398,983.47 = 2,946,854,472.08 : x - Step 2: Convert to fraction form
4,138,354,078.74/5,718,398,983.47 = 2,946,854,472.08/x - Step 3: Cross multiply
4,138,354,078.74x = 5,718,398,983.47 × 2,946,854,472.08 - Step 4: Simplify right side
4,138,354,078.74x = 16,851,289,617,547,702,272 - Step 5: Solve for x
x = 16,851,289,617,547,702,272/4,138,354,078.74 - Step 6: Final answer
x = 4,071,978,689.33
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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.