Finding the Fourth Proportional to 756,468,462.52, 1,043,881,520.06 and 438,904,109.62
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Solution
The fourth proportional to 756,468,462.52, 1,043,881,520.06 and 438,904,109.62 is: 605,661,586.45
Step by Step Solution
- Step 1: Write the proportion equation
756,468,462.52 : 1,043,881,520.06 = 438,904,109.62 : x - Step 2: Convert to fraction form
756,468,462.52/1,043,881,520.06 = 438,904,109.62/x - Step 3: Cross multiply
756,468,462.52x = 1,043,881,520.06 × 438,904,109.62 - Step 4: Simplify right side
756,468,462.52x = 458,163,889,103,292,544 - Step 5: Solve for x
x = 458,163,889,103,292,544/756,468,462.52 - Step 6: Final answer
x = 605,661,586.45
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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.