Finding the Fourth Proportional to 103,177,910.99, 142,331,248.17 and 61,332,212.02
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Solution
The fourth proportional to 103,177,910.99, 142,331,248.17 and 61,332,212.02 is: 84,606,193.38
Step by Step Solution
- Step 1: Write the proportion equation
103,177,910.99 : 142,331,248.17 = 61,332,212.02 : x - Step 2: Convert to fraction form
103,177,910.99/142,331,248.17 = 61,332,212.02/x - Step 3: Cross multiply
103,177,910.99x = 142,331,248.17 × 61,332,212.02 - Step 4: Simplify right side
103,177,910.99x = 8,729,490,289,744,719 - Step 5: Solve for x
x = 8,729,490,289,744,719/103,177,910.99 - Step 6: Final answer
x = 84,606,193.38
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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.