Finding the Fourth Proportional to 945,608,521.80, 1,418,412,782.70 and 299,376,265.80
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Solution
The fourth proportional to 945,608,521.80, 1,418,412,782.70 and 299,376,265.80 is: 449,064,398.70
Step by Step Solution
- Step 1: Write the proportion equation
945,608,521.80 : 1,418,412,782.70 = 299,376,265.80 : x - Step 2: Convert to fraction form
945,608,521.80/1,418,412,782.70 = 299,376,265.80/x - Step 3: Cross multiply
945,608,521.80x = 1,418,412,782.70 × 299,376,265.80 - Step 4: Simplify right side
945,608,521.80x = 424,639,122,247,712,896 - Step 5: Solve for x
x = 424,639,122,247,712,896/945,608,521.80 - Step 6: Final answer
x = 449,064,398.70
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Similar ratio
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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.