Finding the Fourth Proportional to 19,730,188.74, 27,202,883.76 and 15,089,666.34
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Solution
The fourth proportional to 19,730,188.74, 27,202,883.76 and 15,089,666.34 is: 20,804,790.31
Step by Step Solution
- Step 1: Write the proportion equation
19,730,188.74 : 27,202,883.76 = 15,089,666.34 : x - Step 2: Convert to fraction form
19,730,188.74/27,202,883.76 = 15,089,666.34/x - Step 3: Cross multiply
19,730,188.74x = 27,202,883.76 × 15,089,666.34 - Step 4: Simplify right side
19,730,188.74x = 410,482,439,424,204.69 - Step 5: Solve for x
x = 410,482,439,424,204.69/19,730,188.74 - Step 6: Final answer
x = 20,804,790.31
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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.