Finding the Fourth Proportional to 1,412,633,444.67, 1,949,418,682.62 and 777,540,358.18
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Solution
The fourth proportional to 1,412,633,444.67, 1,949,418,682.62 and 777,540,358.18 is: 1,072,997,178.74
Step by Step Solution
- Step 1: Write the proportion equation
1,412,633,444.67 : 1,949,418,682.62 = 777,540,358.18 : x - Step 2: Convert to fraction form
1,412,633,444.67/1,949,418,682.62 = 777,540,358.18/x - Step 3: Cross multiply
1,412,633,444.67x = 1,949,418,682.62 × 777,540,358.18 - Step 4: Simplify right side
1,412,633,444.67x = 1,515,751,700,726,698,496 - Step 5: Solve for x
x = 1,515,751,700,726,698,496/1,412,633,444.67 - Step 6: Final answer
x = 1,072,997,178.74
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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.