Finding the Fourth Proportional to 419,163,238.08, 625,797,627.12 and 320,277,420.72
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Solution
The fourth proportional to 419,163,238.08, 625,797,627.12 and 320,277,420.72 is: 478,164,189.27
Step by Step Solution
- Step 1: Write the proportion equation
419,163,238.08 : 625,797,627.12 = 320,277,420.72 : x - Step 2: Convert to fraction form
419,163,238.08/625,797,627.12 = 320,277,420.72/x - Step 3: Cross multiply
419,163,238.08x = 625,797,627.12 × 320,277,420.72 - Step 4: Simplify right side
419,163,238.08x = 200,428,849,906,689,952 - Step 5: Solve for x
x = 200,428,849,906,689,952/419,163,238.08 - Step 6: Final answer
x = 478,164,189.27
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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.