Finding the Fourth Proportional to 1,553,362,021.80, 2,330,043,032.70 and 943,823,154.60
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Solution
The fourth proportional to 1,553,362,021.80, 2,330,043,032.70 and 943,823,154.60 is: 1,415,734,731.90
Step by Step Solution
- Step 1: Write the proportion equation
1,553,362,021.80 : 2,330,043,032.70 = 943,823,154.60 : x - Step 2: Convert to fraction form
1,553,362,021.80/2,330,043,032.70 = 943,823,154.60/x - Step 3: Cross multiply
1,553,362,021.80x = 2,330,043,032.70 × 943,823,154.60 - Step 4: Simplify right side
1,553,362,021.80x = 2,199,148,565,476,664,832 - Step 5: Solve for x
x = 2,199,148,565,476,664,832/1,553,362,021.80 - Step 6: Final answer
x = 1,415,734,731.90
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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.