Finding the Fourth Proportional to 266,118,914.70, 399,178,372.05 and 163,998,261.90
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Solution
The fourth proportional to 266,118,914.70, 399,178,372.05 and 163,998,261.90 is: 245,997,392.85
Step by Step Solution
- Step 1: Write the proportion equation
266,118,914.70 : 399,178,372.05 = 163,998,261.90 : x - Step 2: Convert to fraction form
266,118,914.70/399,178,372.05 = 163,998,261.90/x - Step 3: Cross multiply
266,118,914.70x = 399,178,372.05 × 163,998,261.90 - Step 4: Simplify right side
266,118,914.70x = 65,464,559,204,271,544 - Step 5: Solve for x
x = 65,464,559,204,271,544/266,118,914.70 - Step 6: Final answer
x = 245,997,392.85
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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.