Finding the Fourth Proportional to 201,475,092.80, 302,212,639.20 and 157,637,115.20
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Solution
The fourth proportional to 201,475,092.80, 302,212,639.20 and 157,637,115.20 is: 236,455,672.80
Step by Step Solution
- Step 1: Write the proportion equation
201,475,092.80 : 302,212,639.20 = 157,637,115.20 : x - Step 2: Convert to fraction form
201,475,092.80/302,212,639.20 = 157,637,115.20/x - Step 3: Cross multiply
201,475,092.80x = 302,212,639.20 × 157,637,115.20 - Step 4: Simplify right side
201,475,092.80x = 47,639,928,620,466,432 - Step 5: Solve for x
x = 47,639,928,620,466,432/201,475,092.80 - Step 6: Final answer
x = 236,455,672.80
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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.