Finding the Fourth Proportional to 1,276,498,825,657.20, 1,761,555,318,708.60 and 706,219,947,316.08
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Solution
The fourth proportional to 1,276,498,825,657.20, 1,761,555,318,708.60 and 706,219,947,316.08 is: 974,576,301,495.82
Step by Step Solution
- Step 1: Write the proportion equation
1,276,498,825,657.20 : 1,761,555,318,708.60 = 706,219,947,316.08 : x - Step 2: Convert to fraction form
1,276,498,825,657.20/1,761,555,318,708.60 = 706,219,947,316.08/x - Step 3: Cross multiply
1,276,498,825,657.20x = 1,761,555,318,708.60 × 706,219,947,316.08 - Step 4: Simplify right side
1,276,498,825,657.20x = 1,244,045,504,372,748,050,235,392 - Step 5: Solve for x
x = 1,244,045,504,372,748,050,235,392/1,276,498,825,657.20 - Step 6: Final answer
x = 974,576,301,495.82
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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.