Finding the Fourth Proportional to 6,421,844.79, 8,864,971.56 and 4,495,666.41
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Solution
The fourth proportional to 6,421,844.79, 8,864,971.56 and 4,495,666.41 is: 6,205,997.84
Step by Step Solution
- Step 1: Write the proportion equation
6,421,844.79 : 8,864,971.56 = 4,495,666.41 : x - Step 2: Convert to fraction form
6,421,844.79/8,864,971.56 = 4,495,666.41/x - Step 3: Cross multiply
6,421,844.79x = 8,864,971.56 × 4,495,666.41 - Step 4: Simplify right side
6,421,844.79x = 39,853,954,867,897.30 - Step 5: Solve for x
x = 39,853,954,867,897.30/6,421,844.79 - Step 6: Final answer
x = 6,205,997.84
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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.