Finding the Fourth Proportional to 511,551,156.20, 767,326,734.30 and 317,840,911.70
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Solution
The fourth proportional to 511,551,156.20, 767,326,734.30 and 317,840,911.70 is: 476,761,367.55
Step by Step Solution
- Step 1: Write the proportion equation
511,551,156.20 : 767,326,734.30 = 317,840,911.70 : x - Step 2: Convert to fraction form
511,551,156.20/767,326,734.30 = 317,840,911.70/x - Step 3: Cross multiply
511,551,156.20x = 767,326,734.30 × 317,840,911.70 - Step 4: Simplify right side
511,551,156.20x = 243,887,828,801,695,648 - Step 5: Solve for x
x = 243,887,828,801,695,648/511,551,156.20 - Step 6: Final answer
x = 476,761,367.55
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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.