Finding the Fourth Proportional to 217,519,746.98, 300,202,773.30 and 122,165,890.88
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Solution
The fourth proportional to 217,519,746.98, 300,202,773.30 and 122,165,890.88 is: 168,603,263.63
Step by Step Solution
- Step 1: Write the proportion equation
217,519,746.98 : 300,202,773.30 = 122,165,890.88 : x - Step 2: Convert to fraction form
217,519,746.98/300,202,773.30 = 122,165,890.88/x - Step 3: Cross multiply
217,519,746.98x = 300,202,773.30 × 122,165,890.88 - Step 4: Simplify right side
217,519,746.98x = 36,674,539,244,841,176 - Step 5: Solve for x
x = 36,674,539,244,841,176/217,519,746.98 - Step 6: Final answer
x = 168,603,263.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.