Finding the Fourth Proportional to 749,051,567.70, 1,123,577,351.55 and 203,793,101.70
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Solution
The fourth proportional to 749,051,567.70, 1,123,577,351.55 and 203,793,101.70 is: 305,689,652.55
Step by Step Solution
- Step 1: Write the proportion equation
749,051,567.70 : 1,123,577,351.55 = 203,793,101.70 : x - Step 2: Convert to fraction form
749,051,567.70/1,123,577,351.55 = 203,793,101.70/x - Step 3: Cross multiply
749,051,567.70x = 1,123,577,351.55 × 203,793,101.70 - Step 4: Simplify right side
749,051,567.70x = 228,977,313,472,245,792 - Step 5: Solve for x
x = 228,977,313,472,245,792/749,051,567.70 - Step 6: Final answer
x = 305,689,652.55
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Double scale
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Similar ratio
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1.5x scale
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.