Finding the Fourth Proportional to 76,867,036.16, 115,302,645.12 and 25,739,525.12
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Solution
The fourth proportional to 76,867,036.16, 115,302,645.12 and 25,739,525.12 is: 38,609,987.83
Step by Step Solution
- Step 1: Write the proportion equation
76,867,036.16 : 115,302,645.12 = 25,739,525.12 : x - Step 2: Convert to fraction form
76,867,036.16/115,302,645.12 = 25,739,525.12/x - Step 3: Cross multiply
76,867,036.16x = 115,302,645.12 × 25,739,525.12 - Step 4: Simplify right side
76,867,036.16x = 2,967,835,330,468,685.50 - Step 5: Solve for x
x = 2,967,835,330,468,685.50/76,867,036.16 - Step 6: Final answer
x = 38,609,987.83
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.