Finding the Fourth Proportional to 149,490,328.71, 206,315,285.39 and 86,752,955.95
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Solution
The fourth proportional to 149,490,328.71, 206,315,285.39 and 86,752,955.95 is: 119,729,891.68
Step by Step Solution
- Step 1: Write the proportion equation
149,490,328.71 : 206,315,285.39 = 86,752,955.95 : x - Step 2: Convert to fraction form
149,490,328.71/206,315,285.39 = 86,752,955.95/x - Step 3: Cross multiply
149,490,328.71x = 206,315,285.39 × 86,752,955.95 - Step 4: Simplify right side
149,490,328.71x = 17,898,460,864,626,120 - Step 5: Solve for x
x = 17,898,460,864,626,120/149,490,328.71 - Step 6: Final answer
x = 119,729,891.68
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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.