Finding the Fourth Proportional to 159,720,918, 220,414,867.20 and 86,382,060
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Solution
The fourth proportional to 159,720,918, 220,414,867.20 and 86,382,060 is: 119,207,242.99
Step by Step Solution
- Step 1: Write the proportion equation
159,720,918 : 220,414,867.20 = 86,382,060 : x - Step 2: Convert to fraction form
159,720,918/220,414,867.20 = 86,382,060/x - Step 3: Cross multiply
159,720,918x = 220,414,867.20 × 86,382,060 - Step 4: Simplify right side
159,720,918x = 19,039,890,283,362,432 - Step 5: Solve for x
x = 19,039,890,283,362,432/159,720,918 - Step 6: Final answer
x = 119,207,242.99
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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.