Finding the Fourth Proportional to 160,519,995.09, 221,518,726.97 and 87,181,137.09
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Solution
The fourth proportional to 160,519,995.09, 221,518,726.97 and 87,181,137.09 is: 120,310,584.94
Step by Step Solution
- Step 1: Write the proportion equation
160,519,995.09 : 221,518,726.97 = 87,181,137.09 : x - Step 2: Convert to fraction form
160,519,995.09/221,518,726.97 = 87,181,137.09/x - Step 3: Cross multiply
160,519,995.09x = 221,518,726.97 × 87,181,137.09 - Step 4: Simplify right side
160,519,995.09x = 19,312,254,503,537,944 - Step 5: Solve for x
x = 19,312,254,503,537,944/160,519,995.09 - Step 6: Final answer
x = 120,310,584.94
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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.