Finding the Fourth Proportional to 457,562,421.84, 631,740,195.90 and 351,526,987.92
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Solution
The fourth proportional to 457,562,421.84, 631,740,195.90 and 351,526,987.92 is: 485,340,835.73
Step by Step Solution
- Step 1: Write the proportion equation
457,562,421.84 : 631,740,195.90 = 351,526,987.92 : x - Step 2: Convert to fraction form
457,562,421.84/631,740,195.90 = 351,526,987.92/x - Step 3: Cross multiply
457,562,421.84x = 631,740,195.90 × 351,526,987.92 - Step 4: Simplify right side
457,562,421.84x = 222,073,728,212,717,728 - Step 5: Solve for x
x = 222,073,728,212,717,728/457,562,421.84 - Step 6: Final answer
x = 485,340,835.73
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.