Finding the Fourth Proportional to 579,881,797.74, 800,237,011.41 and 319,121,413.74
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Solution
The fourth proportional to 579,881,797.74, 800,237,011.41 and 319,121,413.74 is: 440,387,622.79
Step by Step Solution
- Step 1: Write the proportion equation
579,881,797.74 : 800,237,011.41 = 319,121,413.74 : x - Step 2: Convert to fraction form
579,881,797.74/800,237,011.41 = 319,121,413.74/x - Step 3: Cross multiply
579,881,797.74x = 800,237,011.41 × 319,121,413.74 - Step 4: Simplify right side
579,881,797.74x = 255,372,766,408,231,712 - Step 5: Solve for x
x = 255,372,766,408,231,712/579,881,797.74 - Step 6: Final answer
x = 440,387,622.79
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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.