Finding the Fourth Proportional to 520,624,374.63, 780,525,662.99 and 258,127,937.07
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Solution
The fourth proportional to 520,624,374.63, 780,525,662.99 and 258,127,937.07 is: 386,988,180.03
Step by Step Solution
- Step 1: Write the proportion equation
520,624,374.63 : 780,525,662.99 = 258,127,937.07 : x - Step 2: Convert to fraction form
520,624,374.63/780,525,662.99 = 258,127,937.07/x - Step 3: Cross multiply
520,624,374.63x = 780,525,662.99 × 258,127,937.07 - Step 4: Simplify right side
520,624,374.63x = 201,475,479,216,512,096 - Step 5: Solve for x
x = 201,475,479,216,512,096/520,624,374.63 - Step 6: Final answer
x = 386,988,180.03
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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.