Finding the Fourth Proportional to 998,213,683.92, 1,497,456,721.30 and 415,811,727.30
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Solution
The fourth proportional to 998,213,683.92, 1,497,456,721.30 and 415,811,727.30 is: 623,774,323.95
Step by Step Solution
- Step 1: Write the proportion equation
998,213,683.92 : 1,497,456,721.30 = 415,811,727.30 : x - Step 2: Convert to fraction form
998,213,683.92/1,497,456,721.30 = 415,811,727.30/x - Step 3: Cross multiply
998,213,683.92x = 1,497,456,721.30 × 415,811,727.30 - Step 4: Simplify right side
998,213,683.92x = 622,660,065,840,747,648 - Step 5: Solve for x
x = 622,660,065,840,747,648/998,213,683.92 - Step 6: Final answer
x = 623,774,323.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.