Finding the Fourth Proportional to 160,519,999.09, 221,518,732.58 and 87,181,141.09
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Solution
The fourth proportional to 160,519,999.09, 221,518,732.58 and 87,181,141.09 is: 120,310,590.51
Step by Step Solution
- Step 1: Write the proportion equation
160,519,999.09 : 221,518,732.58 = 87,181,141.09 : x - Step 2: Convert to fraction form
160,519,999.09/221,518,732.58 = 87,181,141.09/x - Step 3: Cross multiply
160,519,999.09x = 221,518,732.58 × 87,181,141.09 - Step 4: Simplify right side
160,519,999.09x = 19,312,255,879,134,960 - Step 5: Solve for x
x = 19,312,255,879,134,960/160,519,999.09 - Step 6: Final answer
x = 120,310,590.51
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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.