Finding the Fourth Proportional to 19,730,203.83, 27,202,904.46 and 15,089,681.43
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Solution
The fourth proportional to 19,730,203.83, 27,202,904.46 and 15,089,681.43 is: 20,804,811.03
Step by Step Solution
- Step 1: Write the proportion equation
19,730,203.83 : 27,202,904.46 = 15,089,681.43 : x - Step 2: Convert to fraction form
19,730,203.83/27,202,904.46 = 15,089,681.43/x - Step 3: Cross multiply
19,730,203.83x = 27,202,904.46 × 15,089,681.43 - Step 4: Simplify right side
19,730,203.83x = 410,483,162,272,126.19 - Step 5: Solve for x
x = 410,483,162,272,126.19/19,730,203.83 - Step 6: Final answer
x = 20,804,811.03
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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.