Finding the Fourth Proportional to 45,483,874.29, 68,212,344.12 and 12,686,534.78
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Solution
The fourth proportional to 45,483,874.29, 68,212,344.12 and 12,686,534.78 is: 19,026,045.81
Step by Step Solution
- Step 1: Write the proportion equation
45,483,874.29 : 68,212,344.12 = 12,686,534.78 : x - Step 2: Convert to fraction form
45,483,874.29/68,212,344.12 = 12,686,534.78/x - Step 3: Cross multiply
45,483,874.29x = 68,212,344.12 × 12,686,534.78 - Step 4: Simplify right side
45,483,874.29x = 865,378,275,762,646.88 - Step 5: Solve for x
x = 865,378,275,762,646.88/45,483,874.29 - Step 6: Final answer
x = 19,026,045.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.