Finding the Fourth Proportional to 416,020,937.80, 624,031,406.70 and 313,228,438.60
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Solution
The fourth proportional to 416,020,937.80, 624,031,406.70 and 313,228,438.60 is: 469,842,657.90
Step by Step Solution
- Step 1: Write the proportion equation
416,020,937.80 : 624,031,406.70 = 313,228,438.60 : x - Step 2: Convert to fraction form
416,020,937.80/624,031,406.70 = 313,228,438.60/x - Step 3: Cross multiply
416,020,937.80x = 624,031,406.70 × 313,228,438.60 - Step 4: Simplify right side
416,020,937.80x = 195,464,383,158,002,624 - Step 5: Solve for x
x = 195,464,383,158,002,624/416,020,937.80 - Step 6: Final answer
x = 469,842,657.90
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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.