Finding the Fourth Proportional to 307,901,657.97, 424,900,901.75 and 166,769,367.21
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Solution
The fourth proportional to 307,901,657.97, 424,900,901.75 and 166,769,367.21 is: 230,139,892.65
Step by Step Solution
- Step 1: Write the proportion equation
307,901,657.97 : 424,900,901.75 = 166,769,367.21 : x - Step 2: Convert to fraction form
307,901,657.97/424,900,901.75 = 166,769,367.21/x - Step 3: Cross multiply
307,901,657.97x = 424,900,901.75 × 166,769,367.21 - Step 4: Simplify right side
307,901,657.97x = 70,860,454,510,972,040 - Step 5: Solve for x
x = 70,860,454,510,972,040/307,901,657.97 - Step 6: Final answer
x = 230,139,892.65
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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.