Finding the Fourth Proportional to 159,903,588.24, 220,667,025.60 and 86,564,730.24
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Solution
The fourth proportional to 159,903,588.24, 220,667,025.60 and 86,564,730.24 is: 119,459,367.70
Step by Step Solution
- Step 1: Write the proportion equation
159,903,588.24 : 220,667,025.60 = 86,564,730.24 : x - Step 2: Convert to fraction form
159,903,588.24/220,667,025.60 = 86,564,730.24/x - Step 3: Cross multiply
159,903,588.24x = 220,667,025.60 × 86,564,730.24 - Step 4: Simplify right side
159,903,588.24x = 19,101,981,543,927,172 - Step 5: Solve for x
x = 19,101,981,543,927,172/159,903,588.24 - Step 6: Final answer
x = 119,459,367.70
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1.5x scale
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.