Finding the Fourth Proportional to 812,123,346.96, 1,120,731,639.48 and 440,845,629.84
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Solution
The fourth proportional to 812,123,346.96, 1,120,731,639.48 and 440,845,629.84 is: 608,367,740.37
Step by Step Solution
- Step 1: Write the proportion equation
812,123,346.96 : 1,120,731,639.48 = 440,845,629.84 : x - Step 2: Convert to fraction form
812,123,346.96/1,120,731,639.48 = 440,845,629.84/x - Step 3: Cross multiply
812,123,346.96x = 1,120,731,639.48 × 440,845,629.84 - Step 4: Simplify right side
812,123,346.96x = 494,069,645,488,176,384 - Step 5: Solve for x
x = 494,069,645,488,176,384/812,123,346.96 - Step 6: Final answer
x = 608,367,740.37
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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.