Finding the Fourth Proportional to 4,990,372,362.40, 7,485,558,543.60 and 1,310,249,725.60
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Solution
The fourth proportional to 4,990,372,362.40, 7,485,558,543.60 and 1,310,249,725.60 is: 1,965,374,588.40
Step by Step Solution
- Step 1: Write the proportion equation
4,990,372,362.40 : 7,485,558,543.60 = 1,310,249,725.60 : x - Step 2: Convert to fraction form
4,990,372,362.40/7,485,558,543.60 = 1,310,249,725.60/x - Step 3: Cross multiply
4,990,372,362.40x = 7,485,558,543.60 × 1,310,249,725.60 - Step 4: Simplify right side
4,990,372,362.40x = 9,807,951,027,714,635,776 - Step 5: Solve for x
x = 9,807,951,027,714,635,776/4,990,372,362.40 - Step 6: Final answer
x = 1,965,374,588.40
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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.