Finding the Fourth Proportional to 128,520,332.19, 177,358,268.33 and 69,783,110.91
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Solution
The fourth proportional to 128,520,332.19, 177,358,268.33 and 69,783,110.91 is: 96,300,807.03
Step by Step Solution
- Step 1: Write the proportion equation
128,520,332.19 : 177,358,268.33 = 69,783,110.91 : x - Step 2: Convert to fraction form
128,520,332.19/177,358,268.33 = 69,783,110.91/x - Step 3: Cross multiply
128,520,332.19x = 177,358,268.33 × 69,783,110.91 - Step 4: Simplify right side
128,520,332.19x = 12,376,611,709,677,930 - Step 5: Solve for x
x = 12,376,611,709,677,930/128,520,332.19 - Step 6: Final answer
x = 96,300,807.03
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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.