Finding the Fourth Proportional to 92,713,995.36, 139,162,569.12 and 69,604,578.72
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Solution
The fourth proportional to 92,713,995.36, 139,162,569.12 and 69,604,578.72 is: 104,475,618.37
Step by Step Solution
- Step 1: Write the proportion equation
92,713,995.36 : 139,162,569.12 = 69,604,578.72 : x - Step 2: Convert to fraction form
92,713,995.36/139,162,569.12 = 69,604,578.72/x - Step 3: Cross multiply
92,713,995.36x = 139,162,569.12 × 69,604,578.72 - Step 4: Simplify right side
92,713,995.36x = 9,686,351,997,190,482 - Step 5: Solve for x
x = 9,686,351,997,190,482/92,713,995.36 - Step 6: Final answer
x = 104,475,618.37
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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.