Finding the Fourth Proportional to 672,705,511.20, 1,009,058,266.80 and 366,595,495.20
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Solution
The fourth proportional to 672,705,511.20, 1,009,058,266.80 and 366,595,495.20 is: 549,893,242.80
Step by Step Solution
- Step 1: Write the proportion equation
672,705,511.20 : 1,009,058,266.80 = 366,595,495.20 : x - Step 2: Convert to fraction form
672,705,511.20/1,009,058,266.80 = 366,595,495.20/x - Step 3: Cross multiply
672,705,511.20x = 1,009,058,266.80 × 366,595,495.20 - Step 4: Simplify right side
672,705,511.20x = 369,916,215,003,199,680 - Step 5: Solve for x
x = 369,916,215,003,199,680/672,705,511.20 - Step 6: Final answer
x = 549,893,242.80
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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.