Finding the Fourth Proportional to 128,063,686.06, 176,727,682.39 and 69,326,335.61
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Solution
The fourth proportional to 128,063,686.06, 176,727,682.39 and 69,326,335.61 is: 95,670,232.51
Step by Step Solution
- Step 1: Write the proportion equation
128,063,686.06 : 176,727,682.39 = 69,326,335.61 : x - Step 2: Convert to fraction form
128,063,686.06/176,727,682.39 = 69,326,335.61/x - Step 3: Cross multiply
128,063,686.06x = 176,727,682.39 × 69,326,335.61 - Step 4: Simplify right side
128,063,686.06x = 12,251,882,621,179,518 - Step 5: Solve for x
x = 12,251,882,621,179,518/128,063,686.06 - Step 6: Final answer
x = 95,670,232.51
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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.