Finding the Fourth Proportional to 31,415,179.08, 47,117,519.82 and 8,698,372.68
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Solution
The fourth proportional to 31,415,179.08, 47,117,519.82 and 8,698,372.68 is: 13,046,105.71
Step by Step Solution
- Step 1: Write the proportion equation
31,415,179.08 : 47,117,519.82 = 8,698,372.68 : x - Step 2: Convert to fraction form
31,415,179.08/47,117,519.82 = 8,698,372.68/x - Step 3: Cross multiply
31,415,179.08x = 47,117,519.82 × 8,698,372.68 - Step 4: Simplify right side
31,415,179.08x = 409,845,747,151,646.50 - Step 5: Solve for x
x = 409,845,747,151,646.50/31,415,179.08 - Step 6: Final answer
x = 13,046,105.71
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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.