Finding the Fourth Proportional to 685,706,750.23, 946,259,219.95 and 403,467,472.00
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Solution
The fourth proportional to 685,706,750.23, 946,259,219.95 and 403,467,472.00 is: 556,775,640.89
Step by Step Solution
- Step 1: Write the proportion equation
685,706,750.23 : 946,259,219.95 = 403,467,472.00 : x - Step 2: Convert to fraction form
685,706,750.23/946,259,219.95 = 403,467,472.00/x - Step 3: Cross multiply
685,706,750.23x = 946,259,219.95 × 403,467,472.00 - Step 4: Simplify right side
685,706,750.23x = 381,784,815,323,169,856 - Step 5: Solve for x
x = 381,784,815,323,169,856/685,706,750.23 - Step 6: Final answer
x = 556,775,640.89
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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.