Finding the Fourth Proportional to 1,474,423,496.48, 2,034,690,669.44 and 805,368,285.12
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Solution
The fourth proportional to 1,474,423,496.48, 2,034,690,669.44 and 805,368,285.12 is: 1,111,400,719.74
Step by Step Solution
- Step 1: Write the proportion equation
1,474,423,496.48 : 2,034,690,669.44 = 805,368,285.12 : x - Step 2: Convert to fraction form
1,474,423,496.48/2,034,690,669.44 = 805,368,285.12/x - Step 3: Cross multiply
1,474,423,496.48x = 2,034,690,669.44 × 805,368,285.12 - Step 4: Simplify right side
1,474,423,496.48x = 1,638,675,335,196,557,568 - Step 5: Solve for x
x = 1,638,675,335,196,557,568/1,474,423,496.48 - Step 6: Final answer
x = 1,111,400,719.74
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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.