Finding the Fourth Proportional to 1,873,073,463.84, 2,809,782,903.75 and 612,544,117.79
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Solution
The fourth proportional to 1,873,073,463.84, 2,809,782,903.75 and 612,544,117.79 is: 918,872,656.72
Step by Step Solution
- Step 1: Write the proportion equation
1,873,073,463.84 : 2,809,782,903.75 = 612,544,117.79 : x - Step 2: Convert to fraction form
1,873,073,463.84/2,809,782,903.75 = 612,544,117.79/x - Step 3: Cross multiply
1,873,073,463.84x = 2,809,782,903.75 × 612,544,117.79 - Step 4: Simplify right side
1,873,073,463.84x = 1,721,115,989,958,968,064 - Step 5: Solve for x
x = 1,721,115,989,958,968,064/1,873,073,463.84 - Step 6: Final answer
x = 918,872,656.72
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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.