Finding the Fourth Proportional to 1,234,831,611.52, 1,704,087,589.44 and 677,965,993.60
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Solution
The fourth proportional to 1,234,831,611.52, 1,704,087,589.44 and 677,965,993.60 is: 935,604,032.95
Step by Step Solution
- Step 1: Write the proportion equation
1,234,831,611.52 : 1,704,087,589.44 = 677,965,993.60 : x - Step 2: Convert to fraction form
1,234,831,611.52/1,704,087,589.44 = 677,965,993.60/x - Step 3: Cross multiply
1,234,831,611.52x = 1,704,087,589.44 × 677,965,993.60 - Step 4: Simplify right side
1,234,831,611.52x = 1,155,313,435,756,118,528 - Step 5: Solve for x
x = 1,155,313,435,756,118,528/1,234,831,611.52 - Step 6: Final answer
x = 935,604,032.95
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.