Finding the Fourth Proportional to 1,151,502,757.40, 1,723,852,913.70 and 763,763,403.80
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Solution
The fourth proportional to 1,151,502,757.40, 1,723,852,913.70 and 763,763,403.80 is: 1,143,389,158.69
Step by Step Solution
- Step 1: Write the proportion equation
1,151,502,757.40 : 1,723,852,913.70 = 763,763,403.80 : x - Step 2: Convert to fraction form
1,151,502,757.40/1,723,852,913.70 = 763,763,403.80/x - Step 3: Cross multiply
1,151,502,757.40x = 1,723,852,913.70 × 763,763,403.80 - Step 4: Simplify right side
1,151,502,757.40x = 1,316,615,769,018,059,520 - Step 5: Solve for x
x = 1,316,615,769,018,059,520/1,151,502,757.40 - Step 6: Final answer
x = 1,143,389,158.69
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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.