Finding the Fourth Proportional to 217,291,237.70, 325,936,856.55 and 166,272,901.70
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Solution
The fourth proportional to 217,291,237.70, 325,936,856.55 and 166,272,901.70 is: 249,409,352.55
Step by Step Solution
- Step 1: Write the proportion equation
217,291,237.70 : 325,936,856.55 = 166,272,901.70 : x - Step 2: Convert to fraction form
217,291,237.70/325,936,856.55 = 166,272,901.70/x - Step 3: Cross multiply
217,291,237.70x = 325,936,856.55 × 166,272,901.70 - Step 4: Simplify right side
217,291,237.70x = 54,194,466,909,545,152 - Step 5: Solve for x
x = 54,194,466,909,545,152/217,291,237.70 - Step 6: Final answer
x = 249,409,352.55
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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.