Finding the Fourth Proportional to 1,009,841,353.92, 1,393,474,858.92 and 586,372,237.74
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Solution
The fourth proportional to 1,009,841,353.92, 1,393,474,858.92 and 586,372,237.74 is: 809,132,016.71
Step by Step Solution
- Step 1: Write the proportion equation
1,009,841,353.92 : 1,393,474,858.92 = 586,372,237.74 : x - Step 2: Convert to fraction form
1,009,841,353.92/1,393,474,858.92 = 586,372,237.74/x - Step 3: Cross multiply
1,009,841,353.92x = 1,393,474,858.92 × 586,372,237.74 - Step 4: Simplify right side
1,009,841,353.92x = 817,094,971,259,351,296 - Step 5: Solve for x
x = 817,094,971,259,351,296/1,009,841,353.92 - Step 6: Final answer
x = 809,132,016.71
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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.