Finding the Fourth Proportional to 561,649,306.75, 842,588,863.74 and 193,136,400.05
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Solution
The fourth proportional to 561,649,306.75, 842,588,863.74 and 193,136,400.05 is: 289,744,112.40
Step by Step Solution
- Step 1: Write the proportion equation
561,649,306.75 : 842,588,863.74 = 193,136,400.05 : x - Step 2: Convert to fraction form
561,649,306.75/842,588,863.74 = 193,136,400.05/x - Step 3: Cross multiply
561,649,306.75x = 842,588,863.74 × 193,136,400.05 - Step 4: Simplify right side
561,649,306.75x = 162,734,579,864,963,584 - Step 5: Solve for x
x = 162,734,579,864,963,584/561,649,306.75 - Step 6: Final answer
x = 289,744,112.40
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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.