Finding the Fourth Proportional to 128,364,796.08, 192,555,248.55 and 36,255,746.31
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Solution
The fourth proportional to 128,364,796.08, 192,555,248.55 and 36,255,746.31 is: 54,385,894.38
Step by Step Solution
- Step 1: Write the proportion equation
128,364,796.08 : 192,555,248.55 = 36,255,746.31 : x - Step 2: Convert to fraction form
128,364,796.08/192,555,248.55 = 36,255,746.31/x - Step 3: Cross multiply
128,364,796.08x = 192,555,248.55 × 36,255,746.31 - Step 4: Simplify right side
128,364,796.08x = 6,981,234,242,087,796 - Step 5: Solve for x
x = 6,981,234,242,087,796/128,364,796.08 - Step 6: Final answer
x = 54,385,894.38
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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.