Finding the Fourth Proportional to 236,196,303.90, 354,294,455.85 and 212,387,747.10
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Solution
The fourth proportional to 236,196,303.90, 354,294,455.85 and 212,387,747.10 is: 318,581,620.65
Step by Step Solution
- Step 1: Write the proportion equation
236,196,303.90 : 354,294,455.85 = 212,387,747.10 : x - Step 2: Convert to fraction form
236,196,303.90/354,294,455.85 = 212,387,747.10/x - Step 3: Cross multiply
236,196,303.90x = 354,294,455.85 × 212,387,747.10 - Step 4: Simplify right side
236,196,303.90x = 75,247,801,288,001,920 - Step 5: Solve for x
x = 75,247,801,288,001,920/236,196,303.90 - Step 6: Final answer
x = 318,581,620.65
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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.