Finding the Fourth Proportional to 1,083,357,021.24, 1,624,523,265.99 and 419,681,888.28
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Solution
The fourth proportional to 1,083,357,021.24, 1,624,523,265.99 and 419,681,888.28 is: 629,324,385.64
Step by Step Solution
- Step 1: Write the proportion equation
1,083,357,021.24 : 1,624,523,265.99 = 419,681,888.28 : x - Step 2: Convert to fraction form
1,083,357,021.24/1,624,523,265.99 = 419,681,888.28/x - Step 3: Cross multiply
1,083,357,021.24x = 1,624,523,265.99 × 419,681,888.28 - Step 4: Simplify right side
1,083,357,021.24x = 681,782,991,825,475,840 - Step 5: Solve for x
x = 681,782,991,825,475,840/1,083,357,021.24 - Step 6: Final answer
x = 629,324,385.64
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1.5x scale
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.