Finding the Fourth Proportional to 71,782,398.48, 99,059,206 and 39,187,350.48
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Solution
The fourth proportional to 71,782,398.48, 99,059,206 and 39,187,350.48 is: 54,078,268.57
Step by Step Solution
- Step 1: Write the proportion equation
71,782,398.48 : 99,059,206 = 39,187,350.48 : x - Step 2: Convert to fraction form
71,782,398.48/99,059,206 = 39,187,350.48/x - Step 3: Cross multiply
71,782,398.48x = 99,059,206 × 39,187,350.48 - Step 4: Simplify right side
71,782,398.48x = 3,881,867,823,792,518.50 - Step 5: Solve for x
x = 3,881,867,823,792,518.50/71,782,398.48 - Step 6: Final answer
x = 54,078,268.57
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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.