Finding the Fourth Proportional to 128,012,949.84, 176,658,310.44 and 69,275,599.32
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Solution
The fourth proportional to 128,012,949.84, 176,658,310.44 and 69,275,599.32 is: 95,600,564.99
Step by Step Solution
- Step 1: Write the proportion equation
128,012,949.84 : 176,658,310.44 = 69,275,599.32 : x - Step 2: Convert to fraction form
128,012,949.84/176,658,310.44 = 69,275,599.32/x - Step 3: Cross multiply
128,012,949.84x = 176,658,310.44 × 69,275,599.32 - Step 4: Simplify right side
128,012,949.84x = 12,238,110,330,589,612 - Step 5: Solve for x
x = 12,238,110,330,589,612/128,012,949.84 - Step 6: Final answer
x = 95,600,564.99
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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.