Finding the Fourth Proportional to 1,589,768,459.28, 2,385,673,048.36 and 771,434,349.84
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Solution
The fourth proportional to 1,589,768,459.28, 2,385,673,048.36 and 771,434,349.84 is: 1,157,646,653.67
Step by Step Solution
- Step 1: Write the proportion equation
1,589,768,459.28 : 2,385,673,048.36 = 771,434,349.84 : x - Step 2: Convert to fraction form
1,589,768,459.28/2,385,673,048.36 = 771,434,349.84/x - Step 3: Cross multiply
1,589,768,459.28x = 2,385,673,048.36 × 771,434,349.84 - Step 4: Simplify right side
1,589,768,459.28x = 1,840,390,136,992,407,552 - Step 5: Solve for x
x = 1,840,390,136,992,407,552/1,589,768,459.28 - Step 6: Final answer
x = 1,157,646,653.67
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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.