Finding the Fourth Proportional to 79,417,522.50, 118,328,065.14 and 74,957,071.62
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Solution
The fourth proportional to 79,417,522.50, 118,328,065.14 and 74,957,071.62 is: 111,682,220.42
Step by Step Solution
- Step 1: Write the proportion equation
79,417,522.50 : 118,328,065.14 = 74,957,071.62 : x - Step 2: Convert to fraction form
79,417,522.50/118,328,065.14 = 74,957,071.62/x - Step 3: Cross multiply
79,417,522.50x = 118,328,065.14 × 74,957,071.62 - Step 4: Simplify right side
79,417,522.50x = 8,869,525,253,355,006 - Step 5: Solve for x
x = 8,869,525,253,355,006/79,417,522.50 - Step 6: Final answer
x = 111,682,220.42
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.