Finding the Fourth Proportional to 68,048,959.68, 93,907,712.88 and 38,680,472.16
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Solution
The fourth proportional to 68,048,959.68, 93,907,712.88 and 38,680,472.16 is: 53,379,136.00
Step by Step Solution
- Step 1: Write the proportion equation
68,048,959.68 : 93,907,712.88 = 38,680,472.16 : x - Step 2: Convert to fraction form
68,048,959.68/93,907,712.88 = 38,680,472.16/x - Step 3: Cross multiply
68,048,959.68x = 93,907,712.88 × 38,680,472.16 - Step 4: Simplify right side
68,048,959.68x = 3,632,394,673,664,113 - Step 5: Solve for x
x = 3,632,394,673,664,113/68,048,959.68 - Step 6: Final answer
x = 53,379,136.00
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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.