Finding the Fourth Proportional to 150,169,654.08, 207,234,124.32 and 81,492,022.08
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Solution
The fourth proportional to 150,169,654.08, 207,234,124.32 and 81,492,022.08 is: 112,458,991.39
Step by Step Solution
- Step 1: Write the proportion equation
150,169,654.08 : 207,234,124.32 = 81,492,022.08 : x - Step 2: Convert to fraction form
150,169,654.08/207,234,124.32 = 81,492,022.08/x - Step 3: Cross multiply
150,169,654.08x = 207,234,124.32 × 81,492,022.08 - Step 4: Simplify right side
150,169,654.08x = 16,887,927,834,814,904 - Step 5: Solve for x
x = 16,887,927,834,814,904/150,169,654.08 - Step 6: Final answer
x = 112,458,991.39
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1.5x scale
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.