Finding the Fourth Proportional to 199,587,988.20, 299,381,982.30 and 170,362,669.80
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Solution
The fourth proportional to 199,587,988.20, 299,381,982.30 and 170,362,669.80 is: 255,544,004.70
Step by Step Solution
- Step 1: Write the proportion equation
199,587,988.20 : 299,381,982.30 = 170,362,669.80 : x - Step 2: Convert to fraction form
199,587,988.20/299,381,982.30 = 170,362,669.80/x - Step 3: Cross multiply
199,587,988.20x = 299,381,982.30 × 170,362,669.80 - Step 4: Simplify right side
199,587,988.20x = 51,003,513,794,644,352 - Step 5: Solve for x
x = 51,003,513,794,644,352/199,587,988.20 - Step 6: Final answer
x = 255,544,004.70
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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.