Finding the Fourth Proportional to 64,445,682.21, 88,936,966.14 and 39,680,156.37
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Solution
The fourth proportional to 64,445,682.21, 88,936,966.14 and 39,680,156.37 is: 54,759,800.85
Step by Step Solution
- Step 1: Write the proportion equation
64,445,682.21 : 88,936,966.14 = 39,680,156.37 : x - Step 2: Convert to fraction form
64,445,682.21/88,936,966.14 = 39,680,156.37/x - Step 3: Cross multiply
64,445,682.21x = 88,936,966.14 × 39,680,156.37 - Step 4: Simplify right side
64,445,682.21x = 3,529,032,723,508,595 - Step 5: Solve for x
x = 3,529,032,723,508,595/64,445,682.21 - Step 6: Final answer
x = 54,759,800.85
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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.