Finding the Fourth Proportional to 417,682,217.22, 623,457,381.50 and 386,901,154.50
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Solution
The fourth proportional to 417,682,217.22, 623,457,381.50 and 386,901,154.50 is: 577,511,731.98
Step by Step Solution
- Step 1: Write the proportion equation
417,682,217.22 : 623,457,381.50 = 386,901,154.50 : x - Step 2: Convert to fraction form
417,682,217.22/623,457,381.50 = 386,901,154.50/x - Step 3: Cross multiply
417,682,217.22x = 623,457,381.50 × 386,901,154.50 - Step 4: Simplify right side
417,682,217.22x = 241,216,380,681,962,432 - Step 5: Solve for x
x = 241,216,380,681,962,432/417,682,217.22 - Step 6: Final answer
x = 577,511,731.98
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.