Finding the Fourth Proportional to 945,608,468.80, 1,418,412,703.20 and 299,376,212.80
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Solution
The fourth proportional to 945,608,468.80, 1,418,412,703.20 and 299,376,212.80 is: 449,064,319.20
Step by Step Solution
- Step 1: Write the proportion equation
945,608,468.80 : 1,418,412,703.20 = 299,376,212.80 : x - Step 2: Convert to fraction form
945,608,468.80/1,418,412,703.20 = 299,376,212.80/x - Step 3: Cross multiply
945,608,468.80x = 1,418,412,703.20 × 299,376,212.80 - Step 4: Simplify right side
945,608,468.80x = 424,639,023,271,426,496 - Step 5: Solve for x
x = 424,639,023,271,426,496/945,608,468.80 - Step 6: Final answer
x = 449,064,319.20
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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.