Finding the Fourth Proportional to 13,459,605.57, 18,573,553.13 and 7,346,853.09
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Solution
The fourth proportional to 13,459,605.57, 18,573,553.13 and 7,346,853.09 is: 10,138,273.77
Step by Step Solution
- Step 1: Write the proportion equation
13,459,605.57 : 18,573,553.13 = 7,346,853.09 : x - Step 2: Convert to fraction form
13,459,605.57/18,573,553.13 = 7,346,853.09/x - Step 3: Cross multiply
13,459,605.57x = 18,573,553.13 × 7,346,853.09 - Step 4: Simplify right side
13,459,605.57x = 136,457,166,168,685.41 - Step 5: Solve for x
x = 136,457,166,168,685.41/13,459,605.57 - Step 6: Final answer
x = 10,138,273.77
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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.