Finding the Fourth Proportional to 999,358,375.44, 1,379,157,655.68 and 553,321,747.20
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Solution
The fourth proportional to 999,358,375.44, 1,379,157,655.68 and 553,321,747.20 is: 763,607,873.27
Step by Step Solution
- Step 1: Write the proportion equation
999,358,375.44 : 1,379,157,655.68 = 553,321,747.20 : x - Step 2: Convert to fraction form
999,358,375.44/1,379,157,655.68 = 553,321,747.20/x - Step 3: Cross multiply
999,358,375.44x = 1,379,157,655.68 × 553,321,747.20 - Step 4: Simplify right side
999,358,375.44x = 763,117,923,705,113,728 - Step 5: Solve for x
x = 763,117,923,705,113,728/999,358,375.44 - Step 6: Final answer
x = 763,607,873.27
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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.