Finding the Fourth Proportional to 2,116,979,323.68, 2,921,433,888.68 and 1,177,161,787.36
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Solution
The fourth proportional to 2,116,979,323.68, 2,921,433,888.68 and 1,177,161,787.36 is: 1,624,484,613.33
Step by Step Solution
- Step 1: Write the proportion equation
2,116,979,323.68 : 2,921,433,888.68 = 1,177,161,787.36 : x - Step 2: Convert to fraction form
2,116,979,323.68/2,921,433,888.68 = 1,177,161,787.36/x - Step 3: Cross multiply
2,116,979,323.68x = 2,921,433,888.68 × 1,177,161,787.36 - Step 4: Simplify right side
2,116,979,323.68x = 3,439,000,338,052,623,360 - Step 5: Solve for x
x = 3,439,000,338,052,623,360/2,116,979,323.68 - Step 6: Final answer
x = 1,624,484,613.33
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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.