Finding the Fourth Proportional to 897,779,158.92, 1,239,790,976.64 and 848,867,992.56
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Solution
The fourth proportional to 897,779,158.92, 1,239,790,976.64 and 848,867,992.56 is: 1,172,246,946.34
Step by Step Solution
- Step 1: Write the proportion equation
897,779,158.92 : 1,239,790,976.64 = 848,867,992.56 : x - Step 2: Convert to fraction form
897,779,158.92/1,239,790,976.64 = 848,867,992.56/x - Step 3: Cross multiply
897,779,158.92x = 1,239,790,976.64 × 848,867,992.56 - Step 4: Simplify right side
897,779,158.92x = 1,052,418,877,534,398,720 - Step 5: Solve for x
x = 1,052,418,877,534,398,720/897,779,158.92 - Step 6: Final answer
x = 1,172,246,946.34
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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.