Finding the Fourth Proportional to 19,730,189.74, 27,202,885.14 and 15,089,667.34
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Solution
The fourth proportional to 19,730,189.74, 27,202,885.14 and 15,089,667.34 is: 20,804,791.69
Step by Step Solution
- Step 1: Write the proportion equation
19,730,189.74 : 27,202,885.14 = 15,089,667.34 : x - Step 2: Convert to fraction form
19,730,189.74/27,202,885.14 = 15,089,667.34/x - Step 3: Cross multiply
19,730,189.74x = 27,202,885.14 × 15,089,667.34 - Step 4: Simplify right side
19,730,189.74x = 410,482,487,450,829.31 - Step 5: Solve for x
x = 410,482,487,450,829.31/19,730,189.74 - Step 6: Final answer
x = 20,804,791.69
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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.