Finding the Fourth Proportional to 210,006,750.30, 289,809,331.38 and 115,920,919.53
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Solution
The fourth proportional to 210,006,750.30, 289,809,331.38 and 115,920,919.53 is: 159,970,877.76
Step by Step Solution
- Step 1: Write the proportion equation
210,006,750.30 : 289,809,331.38 = 115,920,919.53 : x - Step 2: Convert to fraction form
210,006,750.30/289,809,331.38 = 115,920,919.53/x - Step 3: Cross multiply
210,006,750.30x = 289,809,331.38 × 115,920,919.53 - Step 4: Simplify right side
210,006,750.30x = 33,594,964,181,944,084 - Step 5: Solve for x
x = 33,594,964,181,944,084/210,006,750.30 - Step 6: Final answer
x = 159,970,877.76
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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.