Finding the Fourth Proportional to 75,183,465.09, 103,774,805.37 and 45,409,383.81
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Solution
The fourth proportional to 75,183,465.09, 103,774,805.37 and 45,409,383.81 is: 62,678,009.87
Step by Step Solution
- Step 1: Write the proportion equation
75,183,465.09 : 103,774,805.37 = 45,409,383.81 : x - Step 2: Convert to fraction form
75,183,465.09/103,774,805.37 = 45,409,383.81/x - Step 3: Cross multiply
75,183,465.09x = 103,774,805.37 × 45,409,383.81 - Step 4: Simplify right side
75,183,465.09x = 4,712,349,966,854,380 - Step 5: Solve for x
x = 4,712,349,966,854,380/75,183,465.09 - Step 6: Final answer
x = 62,678,009.87
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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.