Finding the Fourth Proportional to 207,900,798.63, 286,903,107.83 and 115,081,306.49
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Solution
The fourth proportional to 207,900,798.63, 286,903,107.83 and 115,081,306.49 is: 158,812,206.11
Step by Step Solution
- Step 1: Write the proportion equation
207,900,798.63 : 286,903,107.83 = 115,081,306.49 : x - Step 2: Convert to fraction form
207,900,798.63/286,903,107.83 = 115,081,306.49/x - Step 3: Cross multiply
207,900,798.63x = 286,903,107.83 × 115,081,306.49 - Step 4: Simplify right side
207,900,798.63x = 33,017,184,483,107,824 - Step 5: Solve for x
x = 33,017,184,483,107,824/207,900,798.63 - Step 6: Final answer
x = 158,812,206.11
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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.