Finding the Fourth Proportional to 19,424,979.20, 29,149,132.80 and 8,064,243.20
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Solution
The fourth proportional to 19,424,979.20, 29,149,132.80 and 8,064,243.20 is: 12,101,207.09
Step by Step Solution
- Step 1: Write the proportion equation
19,424,979.20 : 29,149,132.80 = 8,064,243.20 : x - Step 2: Convert to fraction form
19,424,979.20/29,149,132.80 = 8,064,243.20/x - Step 3: Cross multiply
19,424,979.20x = 29,149,132.80 × 8,064,243.20 - Step 4: Simplify right side
19,424,979.20x = 235,065,695,968,296.97 - Step 5: Solve for x
x = 235,065,695,968,296.97/19,424,979.20 - Step 6: Final answer
x = 12,101,207.09
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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.