Finding the Fourth Proportional to 1,252,468,251.20, 1,728,358,835.20 and 695,587,170.53
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Solution
The fourth proportional to 1,252,468,251.20, 1,728,358,835.20 and 695,587,170.53 is: 959,883,997.61
Step by Step Solution
- Step 1: Write the proportion equation
1,252,468,251.20 : 1,728,358,835.20 = 695,587,170.53 : x - Step 2: Convert to fraction form
1,252,468,251.20/1,728,358,835.20 = 695,587,170.53/x - Step 3: Cross multiply
1,252,468,251.20x = 1,728,358,835.20 × 695,587,170.53 - Step 4: Simplify right side
1,252,468,251.20x = 1,202,224,231,839,806,976 - Step 5: Solve for x
x = 1,202,224,231,839,806,976/1,252,468,251.20 - Step 6: Final answer
x = 959,883,997.61
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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.