Finding the Fourth Proportional to 318,618,607.20, 477,927,910.80 and 232,525,165.20
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Solution
The fourth proportional to 318,618,607.20, 477,927,910.80 and 232,525,165.20 is: 348,787,747.80
Step by Step Solution
- Step 1: Write the proportion equation
318,618,607.20 : 477,927,910.80 = 232,525,165.20 : x - Step 2: Convert to fraction form
318,618,607.20/477,927,910.80 = 232,525,165.20/x - Step 3: Cross multiply
318,618,607.20x = 477,927,910.80 × 232,525,165.20 - Step 4: Simplify right side
318,618,607.20x = 111,130,266,412,460,864 - Step 5: Solve for x
x = 111,130,266,412,460,864/318,618,607.20 - Step 6: Final answer
x = 348,787,747.80
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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.