Finding the Fourth Proportional to 414,382,648.69, 621,580,699.09 and 119,281,682.12
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Solution
The fourth proportional to 414,382,648.69, 621,580,699.09 and 119,281,682.12 is: 178,924,459.30
Step by Step Solution
- Step 1: Write the proportion equation
414,382,648.69 : 621,580,699.09 = 119,281,682.12 : x - Step 2: Convert to fraction form
414,382,648.69/621,580,699.09 = 119,281,682.12/x - Step 3: Cross multiply
414,382,648.69x = 621,580,699.09 × 119,281,682.12 - Step 4: Simplify right side
414,382,648.69x = 74,143,191,362,191,664 - Step 5: Solve for x
x = 74,143,191,362,191,664/414,382,648.69 - Step 6: Final answer
x = 178,924,459.30
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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.