Finding the Fourth Proportional to 19,089,911.36, 28,634,926.18 and 4,712,980.80
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Solution
The fourth proportional to 19,089,911.36, 28,634,926.18 and 4,712,980.80 is: 7,069,485.80
Step by Step Solution
- Step 1: Write the proportion equation
19,089,911.36 : 28,634,926.18 = 4,712,980.80 : x - Step 2: Convert to fraction form
19,089,911.36/28,634,926.18 = 4,712,980.80/x - Step 3: Cross multiply
19,089,911.36x = 28,634,926.18 × 4,712,980.80 - Step 4: Simplify right side
19,089,911.36x = 134,955,857,295,757.34 - Step 5: Solve for x
x = 134,955,857,295,757.34/19,089,911.36 - Step 6: Final answer
x = 7,069,485.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.