Finding the Fourth Proportional to 68,492,141.12, 102,740,081.76 and 19,968,822.24
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Solution
The fourth proportional to 68,492,141.12, 102,740,081.76 and 19,968,822.24 is: 29,953,778.58
Step by Step Solution
- Step 1: Write the proportion equation
68,492,141.12 : 102,740,081.76 = 19,968,822.24 : x - Step 2: Convert to fraction form
68,492,141.12/102,740,081.76 = 19,968,822.24/x - Step 3: Cross multiply
68,492,141.12x = 102,740,081.76 × 19,968,822.24 - Step 4: Simplify right side
68,492,141.12x = 2,051,598,429,588,506.25 - Step 5: Solve for x
x = 2,051,598,429,588,506.25/68,492,141.12 - Step 6: Final answer
x = 29,953,778.58
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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.