Finding the Fourth Proportional to 13,173,178.08, 18,180,887.56 and 7,590,355.68
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Solution
The fourth proportional to 13,173,178.08, 18,180,887.56 and 7,590,355.68 is: 10,475,786.66
Step by Step Solution
- Step 1: Write the proportion equation
13,173,178.08 : 18,180,887.56 = 7,590,355.68 : x - Step 2: Convert to fraction form
13,173,178.08/18,180,887.56 = 7,590,355.68/x - Step 3: Cross multiply
13,173,178.08x = 18,180,887.56 × 7,590,355.68 - Step 4: Simplify right side
13,173,178.08x = 137,999,403,158,487.33 - Step 5: Solve for x
x = 137,999,403,158,487.33/13,173,178.08 - Step 6: Final answer
x = 10,475,786.66
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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.