Finding the Fourth Proportional to 485,110,412.70, 727,665,619.05 and 370,319,156.70
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Solution
The fourth proportional to 485,110,412.70, 727,665,619.05 and 370,319,156.70 is: 555,478,735.05
Step by Step Solution
- Step 1: Write the proportion equation
485,110,412.70 : 727,665,619.05 = 370,319,156.70 : x - Step 2: Convert to fraction form
485,110,412.70/727,665,619.05 = 370,319,156.70/x - Step 3: Cross multiply
485,110,412.70x = 727,665,619.05 × 370,319,156.70 - Step 4: Simplify right side
485,110,412.70x = 269,468,518,406,179,424 - Step 5: Solve for x
x = 269,468,518,406,179,424/485,110,412.70 - Step 6: Final answer
x = 555,478,735.05
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.