Finding the Fourth Proportional to 115,249,957.20, 159,058,657.80 and 66,366,910.80
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Solution
The fourth proportional to 115,249,957.20, 159,058,657.80 and 66,366,910.80 is: 91,594,235.79
Step by Step Solution
- Step 1: Write the proportion equation
115,249,957.20 : 159,058,657.80 = 66,366,910.80 : x - Step 2: Convert to fraction form
115,249,957.20/159,058,657.80 = 66,366,910.80/x - Step 3: Cross multiply
115,249,957.20x = 159,058,657.80 × 66,366,910.80 - Step 4: Simplify right side
115,249,957.20x = 10,556,231,754,180,324 - Step 5: Solve for x
x = 10,556,231,754,180,324/115,249,957.20 - Step 6: Final answer
x = 91,594,235.79
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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.