Finding the Fourth Proportional to 719,095,914.58, 992,069,997.75 and 417,629,905.66
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Solution
The fourth proportional to 719,095,914.58, 992,069,997.75 and 417,629,905.66 is: 576,165,280.83
Step by Step Solution
- Step 1: Write the proportion equation
719,095,914.58 : 992,069,997.75 = 417,629,905.66 : x - Step 2: Convert to fraction form
719,095,914.58/992,069,997.75 = 417,629,905.66/x - Step 3: Cross multiply
719,095,914.58x = 992,069,997.75 × 417,629,905.66 - Step 4: Simplify right side
719,095,914.58x = 414,318,099,568,448,960 - Step 5: Solve for x
x = 414,318,099,568,448,960/719,095,914.58 - Step 6: Final answer
x = 576,165,280.83
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Double scale
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1.5x scale
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.