Finding the Fourth Proportional to 744,534,117.36, 1,117,311,281.64 and 259,859,925.36
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Solution
The fourth proportional to 744,534,117.36, 1,117,311,281.64 and 259,859,925.36 is: 389,967,926.90
Step by Step Solution
- Step 1: Write the proportion equation
744,534,117.36 : 1,117,311,281.64 = 259,859,925.36 : x - Step 2: Convert to fraction form
744,534,117.36/1,117,311,281.64 = 259,859,925.36/x - Step 3: Cross multiply
744,534,117.36x = 1,117,311,281.64 × 259,859,925.36 - Step 4: Simplify right side
744,534,117.36x = 290,344,426,250,856,384 - Step 5: Solve for x
x = 290,344,426,250,856,384/744,534,117.36 - Step 6: Final answer
x = 389,967,926.90
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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.