Finding the Fourth Proportional to 289,344,205.60, 434,064,130.80 and 134,053,208.80
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Solution
The fourth proportional to 289,344,205.60, 434,064,130.80 and 134,053,208.80 is: 201,101,969.32
Step by Step Solution
- Step 1: Write the proportion equation
289,344,205.60 : 434,064,130.80 = 134,053,208.80 : x - Step 2: Convert to fraction form
289,344,205.60/434,064,130.80 = 134,053,208.80/x - Step 3: Cross multiply
289,344,205.60x = 434,064,130.80 × 134,053,208.80 - Step 4: Simplify right side
289,344,205.60x = 58,187,689,558,722,912 - Step 5: Solve for x
x = 58,187,689,558,722,912/289,344,205.60 - Step 6: Final answer
x = 201,101,969.32
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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.