Finding the Fourth Proportional to 84,018,409.28, 115,943,799.84 and 47,348,244.80
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Solution
The fourth proportional to 84,018,409.28, 115,943,799.84 and 47,348,244.80 is: 65,339,673.35
Step by Step Solution
- Step 1: Write the proportion equation
84,018,409.28 : 115,943,799.84 = 47,348,244.80 : x - Step 2: Convert to fraction form
84,018,409.28/115,943,799.84 = 47,348,244.80/x - Step 3: Cross multiply
84,018,409.28x = 115,943,799.84 × 47,348,244.80 - Step 4: Simplify right side
84,018,409.28x = 5,489,735,417,866,521 - Step 5: Solve for x
x = 5,489,735,417,866,521/84,018,409.28 - Step 6: Final answer
x = 65,339,673.35
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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.