Finding the Fourth Proportional to 3,878,079,552.97, 5,817,936,420.74 and 1,257,679,334.05
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Solution
The fourth proportional to 3,878,079,552.97, 5,817,936,420.74 and 1,257,679,334.05 is: 1,886,783,987.60
Step by Step Solution
- Step 1: Write the proportion equation
3,878,079,552.97 : 5,817,936,420.74 = 1,257,679,334.05 : x - Step 2: Convert to fraction form
3,878,079,552.97/5,817,936,420.74 = 1,257,679,334.05/x - Step 3: Cross multiply
3,878,079,552.97x = 5,817,936,420.74 × 1,257,679,334.05 - Step 4: Simplify right side
3,878,079,552.97x = 7,317,098,403,181,522,944 - Step 5: Solve for x
x = 7,317,098,403,181,522,944/3,878,079,552.97 - Step 6: Final answer
x = 1,886,783,987.60
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.