Finding the Fourth Proportional to 1,069,457,012.97, 1,603,053,315.84 and 359,729,941.05
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Solution
The fourth proportional to 1,069,457,012.97, 1,603,053,315.84 and 359,729,941.05 is: 539,214,075.75
Step by Step Solution
- Step 1: Write the proportion equation
1,069,457,012.97 : 1,603,053,315.84 = 359,729,941.05 : x - Step 2: Convert to fraction form
1,069,457,012.97/1,603,053,315.84 = 359,729,941.05/x - Step 3: Cross multiply
1,069,457,012.97x = 1,603,053,315.84 × 359,729,941.05 - Step 4: Simplify right side
1,069,457,012.97x = 576,666,274,807,130,240 - Step 5: Solve for x
x = 576,666,274,807,130,240/1,069,457,012.97 - Step 6: Final answer
x = 539,214,075.75
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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.