Finding the Fourth Proportional to 210,135,327.30, 314,777,838.15 and 145,512,101.70
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Solution
The fourth proportional to 210,135,327.30, 314,777,838.15 and 145,512,101.70 is: 217,973,747.61
Step by Step Solution
- Step 1: Write the proportion equation
210,135,327.30 : 314,777,838.15 = 145,512,101.70 : x - Step 2: Convert to fraction form
210,135,327.30/314,777,838.15 = 145,512,101.70/x - Step 3: Cross multiply
210,135,327.30x = 314,777,838.15 × 145,512,101.70 - Step 4: Simplify right side
210,135,327.30x = 45,803,984,797,788,936 - Step 5: Solve for x
x = 45,803,984,797,788,936/210,135,327.30 - Step 6: Final answer
x = 217,973,747.61
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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.