Finding the Fourth Proportional to 19,089,912.36, 28,634,927.68 and 4,712,981.80
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Solution
The fourth proportional to 19,089,912.36, 28,634,927.68 and 4,712,981.80 is: 7,069,487.30
Step by Step Solution
- Step 1: Write the proportion equation
19,089,912.36 : 28,634,927.68 = 4,712,981.80 : x - Step 2: Convert to fraction form
19,089,912.36/28,634,927.68 = 4,712,981.80/x - Step 3: Cross multiply
19,089,912.36x = 28,634,927.68 × 4,712,981.80 - Step 4: Simplify right side
19,089,912.36x = 134,955,893,000,156.22 - Step 5: Solve for x
x = 134,955,893,000,156.22/19,089,912.36 - Step 6: Final answer
x = 7,069,487.30
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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.