Finding the Fourth Proportional to 814,462,087.20, 1,221,693,130.80 and 201,046,312.95
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Solution
The fourth proportional to 814,462,087.20, 1,221,693,130.80 and 201,046,312.95 is: 301,569,469.43
Step by Step Solution
- Step 1: Write the proportion equation
814,462,087.20 : 1,221,693,130.80 = 201,046,312.95 : x - Step 2: Convert to fraction form
814,462,087.20/1,221,693,130.80 = 201,046,312.95/x - Step 3: Cross multiply
814,462,087.20x = 1,221,693,130.80 × 201,046,312.95 - Step 4: Simplify right side
814,462,087.20x = 245,616,899,503,682,048 - Step 5: Solve for x
x = 245,616,899,503,682,048/814,462,087.20 - Step 6: Final answer
x = 301,569,469.43
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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.