Finding the Fourth Proportional to 293,212,948.20, 439,819,422.30 and 149,587,117.80
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Solution
The fourth proportional to 293,212,948.20, 439,819,422.30 and 149,587,117.80 is: 224,380,676.70
Step by Step Solution
- Step 1: Write the proportion equation
293,212,948.20 : 439,819,422.30 = 149,587,117.80 : x - Step 2: Convert to fraction form
293,212,948.20/439,819,422.30 = 149,587,117.80/x - Step 3: Cross multiply
293,212,948.20x = 439,819,422.30 × 149,587,117.80 - Step 4: Simplify right side
293,212,948.20x = 65,791,319,734,318,056 - Step 5: Solve for x
x = 65,791,319,734,318,056/293,212,948.20 - Step 6: Final answer
x = 224,380,676.70
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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.