Finding the Fourth Proportional to 86,357,918.05, 129,405,064.30 and 51,273,944.92
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Solution
The fourth proportional to 86,357,918.05, 129,405,064.30 and 51,273,944.92 is: 76,832,655.18
Step by Step Solution
- Step 1: Write the proportion equation
86,357,918.05 : 129,405,064.30 = 51,273,944.92 : x - Step 2: Convert to fraction form
86,357,918.05/129,405,064.30 = 51,273,944.92/x - Step 3: Cross multiply
86,357,918.05x = 129,405,064.30 × 51,273,944.92 - Step 4: Simplify right side
86,357,918.05x = 6,635,108,139,287,258 - Step 5: Solve for x
x = 6,635,108,139,287,258/86,357,918.05 - Step 6: Final answer
x = 76,832,655.18
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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.