Finding the Fourth Proportional to 814,286,937.99, 1,220,872,794.51 and 414,671,967.56
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Solution
The fourth proportional to 814,286,937.99, 1,220,872,794.51 and 414,671,967.56 is: 621,723,989.69
Step by Step Solution
- Step 1: Write the proportion equation
814,286,937.99 : 1,220,872,794.51 = 414,671,967.56 : x - Step 2: Convert to fraction form
814,286,937.99/1,220,872,794.51 = 414,671,967.56/x - Step 3: Cross multiply
814,286,937.99x = 1,220,872,794.51 × 414,671,967.56 - Step 4: Simplify right side
814,286,937.99x = 506,261,723,839,049,472 - Step 5: Solve for x
x = 506,261,723,839,049,472/814,286,937.99 - Step 6: Final answer
x = 621,723,989.69
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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.