Finding the Fourth Proportional to 19,580,109.53, 27,018,967.01 and 11,320,701.75
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Solution
The fourth proportional to 19,580,109.53, 27,018,967.01 and 11,320,701.75 is: 15,621,652.51
Step by Step Solution
- Step 1: Write the proportion equation
19,580,109.53 : 27,018,967.01 = 11,320,701.75 : x - Step 2: Convert to fraction form
19,580,109.53/27,018,967.01 = 11,320,701.75/x - Step 3: Cross multiply
19,580,109.53x = 27,018,967.01 × 11,320,701.75 - Step 4: Simplify right side
19,580,109.53x = 305,873,667,056,695.75 - Step 5: Solve for x
x = 305,873,667,056,695.75/19,580,109.53 - Step 6: Final answer
x = 15,621,652.51
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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.