Finding the Fourth Proportional to 19,903,119.32, 27,474,779.21 and 13,380,531.75
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Solution
The fourth proportional to 19,903,119.32, 27,474,779.21 and 13,380,531.75 is: 18,470,831.11
Step by Step Solution
- Step 1: Write the proportion equation
19,903,119.32 : 27,474,779.21 = 13,380,531.75 : x - Step 2: Convert to fraction form
19,903,119.32/27,474,779.21 = 13,380,531.75/x - Step 3: Cross multiply
19,903,119.32x = 27,474,779.21 × 13,380,531.75 - Step 4: Simplify right side
19,903,119.32x = 367,627,155,476,742.25 - Step 5: Solve for x
x = 367,627,155,476,742.25/19,903,119.32 - Step 6: Final answer
x = 18,470,831.11
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.