Finding the Fourth Proportional to 255,681,281.08, 352,840,015.50 and 138,206,613.28
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Solution
The fourth proportional to 255,681,281.08, 352,840,015.50 and 138,206,613.28 is: 190,725,043.95
Step by Step Solution
- Step 1: Write the proportion equation
255,681,281.08 : 352,840,015.50 = 138,206,613.28 : x - Step 2: Convert to fraction form
255,681,281.08/352,840,015.50 = 138,206,613.28/x - Step 3: Cross multiply
255,681,281.08x = 352,840,015.50 × 138,206,613.28 - Step 4: Simplify right side
255,681,281.08x = 48,764,823,571,917,704 - Step 5: Solve for x
x = 48,764,823,571,917,704/255,681,281.08 - Step 6: Final answer
x = 190,725,043.95
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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.