Finding the Fourth Proportional to 14,219,155.48, 19,621,949.34 and 8,109,552.28
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Solution
The fourth proportional to 14,219,155.48, 19,621,949.34 and 8,109,552.28 is: 11,190,905.41
Step by Step Solution
- Step 1: Write the proportion equation
14,219,155.48 : 19,621,949.34 = 8,109,552.28 : x - Step 2: Convert to fraction form
14,219,155.48/19,621,949.34 = 8,109,552.28/x - Step 3: Cross multiply
14,219,155.48x = 19,621,949.34 × 8,109,552.28 - Step 4: Simplify right side
14,219,155.48x = 159,125,224,008,241.50 - Step 5: Solve for x
x = 159,125,224,008,241.50/14,219,155.48 - Step 6: Final answer
x = 11,190,905.41
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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.