Finding the Fourth Proportional to 368,723,994.81, 508,833,093.40 and 201,456,656.34
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Solution
The fourth proportional to 368,723,994.81, 508,833,093.40 and 201,456,656.34 is: 278,006,896.96
Step by Step Solution
- Step 1: Write the proportion equation
368,723,994.81 : 508,833,093.40 = 201,456,656.34 : x - Step 2: Convert to fraction form
368,723,994.81/508,833,093.40 = 201,456,656.34/x - Step 3: Cross multiply
368,723,994.81x = 508,833,093.40 × 201,456,656.34 - Step 4: Simplify right side
368,723,994.81x = 102,507,813,631,502,912 - Step 5: Solve for x
x = 102,507,813,631,502,912/368,723,994.81 - Step 6: Final answer
x = 278,006,896.96
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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.