Finding the Fourth Proportional to 122,345,967.10, 168,851,811.52 and 68,709,443.08
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Solution
The fourth proportional to 122,345,967.10, 168,851,811.52 and 68,709,443.08 is: 94,827,105.52
Step by Step Solution
- Step 1: Write the proportion equation
122,345,967.10 : 168,851,811.52 = 68,709,443.08 : x - Step 2: Convert to fraction form
122,345,967.10/168,851,811.52 = 68,709,443.08/x - Step 3: Cross multiply
122,345,967.10x = 168,851,811.52 × 68,709,443.08 - Step 4: Simplify right side
122,345,967.10x = 11,601,713,932,588,328 - Step 5: Solve for x
x = 11,601,713,932,588,328/122,345,967.10 - Step 6: Final answer
x = 94,827,105.52
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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.