Finding the Fourth Proportional to 1,379,780,967.92, 1,904,088,049.36 and 753,249,395.84
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Solution
The fourth proportional to 1,379,780,967.92, 1,904,088,049.36 and 753,249,395.84 is: 1,039,478,878.28
Step by Step Solution
- Step 1: Write the proportion equation
1,379,780,967.92 : 1,904,088,049.36 = 753,249,395.84 : x - Step 2: Convert to fraction form
1,379,780,967.92/1,904,088,049.36 = 753,249,395.84/x - Step 3: Cross multiply
1,379,780,967.92x = 1,904,088,049.36 × 753,249,395.84 - Step 4: Simplify right side
1,379,780,967.92x = 1,434,253,172,795,180,544 - Step 5: Solve for x
x = 1,434,253,172,795,180,544/1,379,780,967.92 - Step 6: Final answer
x = 1,039,478,878.28
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.