Finding the Fourth Proportional to 79,921,848.87, 110,292,150.06 and 43,252,419.87
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Solution
The fourth proportional to 79,921,848.87, 110,292,150.06 and 43,252,419.87 is: 59,688,338.67
Step by Step Solution
- Step 1: Write the proportion equation
79,921,848.87 : 110,292,150.06 = 43,252,419.87 : x - Step 2: Convert to fraction form
79,921,848.87/110,292,150.06 = 43,252,419.87/x - Step 3: Cross multiply
79,921,848.87x = 110,292,150.06 × 43,252,419.87 - Step 4: Simplify right side
79,921,848.87x = 4,770,402,382,760,165 - Step 5: Solve for x
x = 4,770,402,382,760,165/79,921,848.87 - Step 6: Final answer
x = 59,688,338.67
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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.