Finding the Fourth Proportional to 429,801,913.20, 644,839,157.16 and 153,447,201.84
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Solution
The fourth proportional to 429,801,913.20, 644,839,157.16 and 153,447,201.84 is: 230,219,459.86
Step by Step Solution
- Step 1: Write the proportion equation
429,801,913.20 : 644,839,157.16 = 153,447,201.84 : x - Step 2: Convert to fraction form
429,801,913.20/644,839,157.16 = 153,447,201.84/x - Step 3: Cross multiply
429,801,913.20x = 644,839,157.16 × 153,447,201.84 - Step 4: Simplify right side
429,801,913.20x = 98,948,764,303,066,000 - Step 5: Solve for x
x = 98,948,764,303,066,000/429,801,913.20 - Step 6: Final answer
x = 230,219,459.86
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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.