Finding the Fourth Proportional to 1,235,830,543.40, 1,854,940,208.70 and 623,106,626.60
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Solution
The fourth proportional to 1,235,830,543.40, 1,854,940,208.70 and 623,106,626.60 is: 935,262,153.99
Step by Step Solution
- Step 1: Write the proportion equation
1,235,830,543.40 : 1,854,940,208.70 = 623,106,626.60 : x - Step 2: Convert to fraction form
1,235,830,543.40/1,854,940,208.70 = 623,106,626.60/x - Step 3: Cross multiply
1,235,830,543.40x = 1,854,940,208.70 × 623,106,626.60 - Step 4: Simplify right side
1,235,830,543.40x = 1,155,825,535,987,757,056 - Step 5: Solve for x
x = 1,155,825,535,987,757,056/1,235,830,543.40 - Step 6: Final answer
x = 935,262,153.99
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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.