Finding the Fourth Proportional to 719,095,912.58, 992,069,994.99 and 417,629,903.66
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Solution
The fourth proportional to 719,095,912.58, 992,069,994.99 and 417,629,903.66 is: 576,165,278.07
Step by Step Solution
- Step 1: Write the proportion equation
719,095,912.58 : 992,069,994.99 = 417,629,903.66 : x - Step 2: Convert to fraction form
719,095,912.58/992,069,994.99 = 417,629,903.66/x - Step 3: Cross multiply
719,095,912.58x = 992,069,994.99 × 417,629,903.66 - Step 4: Simplify right side
719,095,912.58x = 414,318,096,431,650,432 - Step 5: Solve for x
x = 414,318,096,431,650,432/719,095,912.58 - Step 6: Final answer
x = 576,165,278.07
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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.