Finding the Fourth Proportional to 81,541,517.39, 122,312,242.06 and 29,730,000.23
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Solution
The fourth proportional to 81,541,517.39, 122,312,242.06 and 29,730,000.23 is: 44,594,987.93
Step by Step Solution
- Step 1: Write the proportion equation
81,541,517.39 : 122,312,242.06 = 29,730,000.23 : x - Step 2: Convert to fraction form
81,541,517.39/122,312,242.06 = 29,730,000.23/x - Step 3: Cross multiply
81,541,517.39x = 122,312,242.06 × 29,730,000.23 - Step 4: Simplify right side
81,541,517.39x = 3,636,342,983,889,730 - Step 5: Solve for x
x = 3,636,342,983,889,730/81,541,517.39 - Step 6: Final answer
x = 44,594,987.93
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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.