Finding the Fourth Proportional to 1,225,283,080.44, 1,690,901,442.60 and 668,368,604.28
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Solution
The fourth proportional to 1,225,283,080.44, 1,690,901,442.60 and 668,368,604.28 is: 922,354,560.51
Step by Step Solution
- Step 1: Write the proportion equation
1,225,283,080.44 : 1,690,901,442.60 = 668,368,604.28 : x - Step 2: Convert to fraction form
1,225,283,080.44/1,690,901,442.60 = 668,368,604.28/x - Step 3: Cross multiply
1,225,283,080.44x = 1,690,901,442.60 × 668,368,604.28 - Step 4: Simplify right side
1,225,283,080.44x = 1,130,145,437,165,600,384 - Step 5: Solve for x
x = 1,130,145,437,165,600,384/1,225,283,080.44 - Step 6: Final answer
x = 922,354,560.51
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1.5x scale
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.