Finding the Fourth Proportional to 157,801,189.98, 217,746,782.37 and 87,227,266.74
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Solution
The fourth proportional to 157,801,189.98, 217,746,782.37 and 87,227,266.74 is: 120,363,203.03
Step by Step Solution
- Step 1: Write the proportion equation
157,801,189.98 : 217,746,782.37 = 87,227,266.74 : x - Step 2: Convert to fraction form
157,801,189.98/217,746,782.37 = 87,227,266.74/x - Step 3: Cross multiply
157,801,189.98x = 217,746,782.37 × 87,227,266.74 - Step 4: Simplify right side
157,801,189.98x = 18,993,456,667,564,720 - Step 5: Solve for x
x = 18,993,456,667,564,720/157,801,189.98 - Step 6: Final answer
x = 120,363,203.03
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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.