Finding the Fourth Proportional to 69,828,351.82, 96,366,115.08 and 38,888,521.12
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Solution
The fourth proportional to 69,828,351.82, 96,366,115.08 and 38,888,521.12 is: 53,667,824.08
Step by Step Solution
- Step 1: Write the proportion equation
69,828,351.82 : 96,366,115.08 = 38,888,521.12 : x - Step 2: Convert to fraction form
69,828,351.82/96,366,115.08 = 38,888,521.12/x - Step 3: Cross multiply
69,828,351.82x = 96,366,115.08 × 38,888,521.12 - Step 4: Simplify right side
69,828,351.82x = 3,747,535,701,540,930 - Step 5: Solve for x
x = 3,747,535,701,540,930/69,828,351.82 - Step 6: Final answer
x = 53,667,824.08
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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.