Finding the Fourth Proportional to 4,485,643,292.70, 6,190,479,297.27 and 2,478,478,669.74
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Solution
The fourth proportional to 4,485,643,292.70, 6,190,479,297.27 and 2,478,478,669.74 is: 3,420,461,657.91
Step by Step Solution
- Step 1: Write the proportion equation
4,485,643,292.70 : 6,190,479,297.27 = 2,478,478,669.74 : x - Step 2: Convert to fraction form
4,485,643,292.70/6,190,479,297.27 = 2,478,478,669.74/x - Step 3: Cross multiply
4,485,643,292.70x = 6,190,479,297.27 × 2,478,478,669.74 - Step 4: Simplify right side
4,485,643,292.70x = 15,342,970,893,750,759,424 - Step 5: Solve for x
x = 15,342,970,893,750,759,424/4,485,643,292.70 - Step 6: Final answer
x = 3,420,461,657.91
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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.