Finding the Fourth Proportional to 6,919,822.29, 9,549,644.87 and 3,979,641.68
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Solution
The fourth proportional to 6,919,822.29, 9,549,644.87 and 3,979,641.68 is: 5,492,072.36
Step by Step Solution
- Step 1: Write the proportion equation
6,919,822.29 : 9,549,644.87 = 3,979,641.68 : x - Step 2: Convert to fraction form
6,919,822.29/9,549,644.87 = 3,979,641.68/x - Step 3: Cross multiply
6,919,822.29x = 9,549,644.87 × 3,979,641.68 - Step 4: Simplify right side
6,919,822.29x = 38,004,164,753,850.18 - Step 5: Solve for x
x = 38,004,164,753,850.18/6,919,822.29 - Step 6: Final answer
x = 5,492,072.36
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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.