Finding the Fourth Proportional to 13,698,889.76, 18,904,606.80 and 8,265,332
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Solution
The fourth proportional to 13,698,889.76, 18,904,606.80 and 8,265,332 is: 11,406,241.99
Step by Step Solution
- Step 1: Write the proportion equation
13,698,889.76 : 18,904,606.80 = 8,265,332 : x - Step 2: Convert to fraction form
13,698,889.76/18,904,606.80 = 8,265,332/x - Step 3: Cross multiply
13,698,889.76x = 18,904,606.80 × 8,265,332 - Step 4: Simplify right side
13,698,889.76x = 156,252,851,531,457.59 - Step 5: Solve for x
x = 156,252,851,531,457.59/13,698,889.76 - Step 6: Final answer
x = 11,406,241.99
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1.5x scale
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.