Finding the Fourth Proportional to 199,706,402.20, 299,559,603.30 and 165,068,987.80
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Solution
The fourth proportional to 199,706,402.20, 299,559,603.30 and 165,068,987.80 is: 247,603,481.70
Step by Step Solution
- Step 1: Write the proportion equation
199,706,402.20 : 299,559,603.30 = 165,068,987.80 : x - Step 2: Convert to fraction form
199,706,402.20/299,559,603.30 = 165,068,987.80/x - Step 3: Cross multiply
199,706,402.20x = 299,559,603.30 × 165,068,987.80 - Step 4: Simplify right side
199,706,402.20x = 49,448,000,502,500,544 - Step 5: Solve for x
x = 49,448,000,502,500,544/199,706,402.20 - Step 6: Final answer
x = 247,603,481.70
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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.