Finding the Fourth Proportional to 28,344,239.22, 39,116,294.64 and 15,955,132.08
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Solution
The fourth proportional to 28,344,239.22, 39,116,294.64 and 15,955,132.08 is: 22,018,782.82
Step by Step Solution
- Step 1: Write the proportion equation
28,344,239.22 : 39,116,294.64 = 15,955,132.08 : x - Step 2: Convert to fraction form
28,344,239.22/39,116,294.64 = 15,955,132.08/x - Step 3: Cross multiply
28,344,239.22x = 39,116,294.64 × 15,955,132.08 - Step 4: Simplify right side
28,344,239.22x = 624,105,647,461,396.12 - Step 5: Solve for x
x = 624,105,647,461,396.12/28,344,239.22 - Step 6: Final answer
x = 22,018,782.82
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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.